Home / 1,006,208.34-1,509,312.51-258,254.34

Finding the Fourth Proportional to 1,006,208.34, 1,509,312.51 and 258,254.34

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Solution

The fourth proportional to 1,006,208.34, 1,509,312.51 and 258,254.34 is: 387,381.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,208.34 : 1,509,312.51 = 258,254.34 : x
  2. Step 2: Convert to fraction form
    1,006,208.34/1,509,312.51 = 258,254.34/x
  3. Step 3: Cross multiply
    1,006,208.34x = 1,509,312.51 × 258,254.34
  4. Step 4: Simplify right side
    1,006,208.34x = 389,786,506,123.79
  5. Step 5: Solve for x
    x = 389,786,506,123.79/1,006,208.34
  6. Step 6: Final answer
    x = 387,381.51

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Half scale
Find fourth proportional to 2,012,416.68, 3,018,625.02 and 516,508.68
Double scale
Find fourth proportional to 1,006,209.34, 1,509,314.01 and 258,255.34
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.