Home / 612,064.13-844,669.76-340,143.49

Finding the Fourth Proportional to 612,064.13, 844,669.76 and 340,143.49

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Solution

The fourth proportional to 612,064.13, 844,669.76 and 340,143.49 is: 469,409.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,064.13 : 844,669.76 = 340,143.49 : x
  2. Step 2: Convert to fraction form
    612,064.13/844,669.76 = 340,143.49/x
  3. Step 3: Cross multiply
    612,064.13x = 844,669.76 × 340,143.49
  4. Step 4: Simplify right side
    612,064.13x = 287,308,914,139.80
  5. Step 5: Solve for x
    x = 287,308,914,139.80/612,064.13
  6. Step 6: Final answer
    x = 469,409.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.