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Finding the Fourth Proportional to 488,641.92, 729,620.60 and 437,712.15

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Solution

The fourth proportional to 488,641.92, 729,620.60 and 437,712.15 is: 653,574.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,641.92 : 729,620.60 = 437,712.15 : x
  2. Step 2: Convert to fraction form
    488,641.92/729,620.60 = 437,712.15/x
  3. Step 3: Cross multiply
    488,641.92x = 729,620.60 × 437,712.15
  4. Step 4: Simplify right side
    488,641.92x = 319,363,802,057.81
  5. Step 5: Solve for x
    x = 319,363,802,057.81/488,641.92
  6. Step 6: Final answer
    x = 653,574.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.