Home / 731,719.20-1,009,929.36-445,331.52

Finding the Fourth Proportional to 731,719.20, 1,009,929.36 and 445,331.52

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Solution

The fourth proportional to 731,719.20, 1,009,929.36 and 445,331.52 is: 614,652.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,719.20 : 1,009,929.36 = 445,331.52 : x
  2. Step 2: Convert to fraction form
    731,719.20/1,009,929.36 = 445,331.52/x
  3. Step 3: Cross multiply
    731,719.20x = 1,009,929.36 × 445,331.52
  4. Step 4: Simplify right side
    731,719.20x = 449,753,376,981.43
  5. Step 5: Solve for x
    x = 449,753,376,981.43/731,719.20
  6. Step 6: Final answer
    x = 614,652.97

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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.