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Finding the Fourth Proportional to 999,730.80, 1,497,781.80 and 577,753.20

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Solution

The fourth proportional to 999,730.80, 1,497,781.80 and 577,753.20 is: 865,581.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,730.80 : 1,497,781.80 = 577,753.20 : x
  2. Step 2: Convert to fraction form
    999,730.80/1,497,781.80 = 577,753.20/x
  3. Step 3: Cross multiply
    999,730.80x = 1,497,781.80 × 577,753.20
  4. Step 4: Simplify right side
    999,730.80x = 865,348,227,851.76
  5. Step 5: Solve for x
    x = 865,348,227,851.76/999,730.80
  6. Step 6: Final answer
    x = 865,581.24

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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.