Home / 747,435.18-1,031,446.17-407,905.86

Finding the Fourth Proportional to 747,435.18, 1,031,446.17 and 407,905.86

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Solution

The fourth proportional to 747,435.18, 1,031,446.17 and 407,905.86 is: 562,902.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,435.18 : 1,031,446.17 = 407,905.86 : x
  2. Step 2: Convert to fraction form
    747,435.18/1,031,446.17 = 407,905.86/x
  3. Step 3: Cross multiply
    747,435.18x = 1,031,446.17 × 407,905.86
  4. Step 4: Simplify right side
    747,435.18x = 420,732,937,017.56
  5. Step 5: Solve for x
    x = 420,732,937,017.56/747,435.18
  6. Step 6: Final answer
    x = 562,902.24

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Double scale
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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.