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Finding the Fourth Proportional to 566,753.68, 780,789.77 and 394,375.22

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Solution

The fourth proportional to 566,753.68, 780,789.77 and 394,375.22 is: 543,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,753.68 : 780,789.77 = 394,375.22 : x
  2. Step 2: Convert to fraction form
    566,753.68/780,789.77 = 394,375.22/x
  3. Step 3: Cross multiply
    566,753.68x = 780,789.77 × 394,375.22
  4. Step 4: Simplify right side
    566,753.68x = 307,924,137,317.50
  5. Step 5: Solve for x
    x = 307,924,137,317.50/566,753.68
  6. Step 6: Final answer
    x = 543,312.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.