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Finding the Fourth Proportional to 579,753.27, 869,657.18 and 478,363.22

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Solution

The fourth proportional to 579,753.27, 869,657.18 and 478,363.22 is: 717,567.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,753.27 : 869,657.18 = 478,363.22 : x
  2. Step 2: Convert to fraction form
    579,753.27/869,657.18 = 478,363.22/x
  3. Step 3: Cross multiply
    579,753.27x = 869,657.18 × 478,363.22
  4. Step 4: Simplify right side
    579,753.27x = 416,012,002,180.82
  5. Step 5: Solve for x
    x = 416,012,002,180.82/579,753.27
  6. Step 6: Final answer
    x = 717,567.32

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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.