Home / 1,207,628.90-1,811,443.35-497,420.90

Finding the Fourth Proportional to 1,207,628.90, 1,811,443.35 and 497,420.90

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Solution

The fourth proportional to 1,207,628.90, 1,811,443.35 and 497,420.90 is: 746,131.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,628.90 : 1,811,443.35 = 497,420.90 : x
  2. Step 2: Convert to fraction form
    1,207,628.90/1,811,443.35 = 497,420.90/x
  3. Step 3: Cross multiply
    1,207,628.90x = 1,811,443.35 × 497,420.90
  4. Step 4: Simplify right side
    1,207,628.90x = 901,049,781,456.02
  5. Step 5: Solve for x
    x = 901,049,781,456.02/1,207,628.90
  6. Step 6: Final answer
    x = 746,131.35

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Double scale
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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.