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Finding the Fourth Proportional to 552,526.12, 762,414.42 and 310,800.52

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Solution

The fourth proportional to 552,526.12, 762,414.42 and 310,800.52 is: 428,864.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,526.12 : 762,414.42 = 310,800.52 : x
  2. Step 2: Convert to fraction form
    552,526.12/762,414.42 = 310,800.52/x
  3. Step 3: Cross multiply
    552,526.12x = 762,414.42 × 310,800.52
  4. Step 4: Simplify right side
    552,526.12x = 236,958,798,191.50
  5. Step 5: Solve for x
    x = 236,958,798,191.50/552,526.12
  6. Step 6: Final answer
    x = 428,864.43

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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.