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Finding the Fourth Proportional to 439,712.10, 657,494.55 and 327,737.70

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Solution

The fourth proportional to 439,712.10, 657,494.55 and 327,737.70 is: 490,061.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,712.10 : 657,494.55 = 327,737.70 : x
  2. Step 2: Convert to fraction form
    439,712.10/657,494.55 = 327,737.70/x
  3. Step 3: Cross multiply
    439,712.10x = 657,494.55 × 327,737.70
  4. Step 4: Simplify right side
    439,712.10x = 215,485,751,579.54
  5. Step 5: Solve for x
    x = 215,485,751,579.54/439,712.10
  6. Step 6: Final answer
    x = 490,061.00

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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.