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Finding the Fourth Proportional to 870,781.80, 1,306,677.12 and 365,298

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Solution

The fourth proportional to 870,781.80, 1,306,677.12 and 365,298 is: 548,158.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,781.80 : 1,306,677.12 = 365,298 : x
  2. Step 2: Convert to fraction form
    870,781.80/1,306,677.12 = 365,298/x
  3. Step 3: Cross multiply
    870,781.80x = 1,306,677.12 × 365,298
  4. Step 4: Simplify right side
    870,781.80x = 477,326,538,581.76
  5. Step 5: Solve for x
    x = 477,326,538,581.76/870,781.80
  6. Step 6: Final answer
    x = 548,158.61

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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.