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Finding the Fourth Proportional to 531,791.68, 733,874.80 and 290,079.52

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Solution

The fourth proportional to 531,791.68, 733,874.80 and 290,079.52 is: 400,310.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,791.68 : 733,874.80 = 290,079.52 : x
  2. Step 2: Convert to fraction form
    531,791.68/733,874.80 = 290,079.52/x
  3. Step 3: Cross multiply
    531,791.68x = 733,874.80 × 290,079.52
  4. Step 4: Simplify right side
    531,791.68x = 212,882,049,724.10
  5. Step 5: Solve for x
    x = 212,882,049,724.10/531,791.68
  6. Step 6: Final answer
    x = 400,310.98

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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.