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Finding the Fourth Proportional to 527,268.78, 727,630.74 and 285,551.52

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Solution

The fourth proportional to 527,268.78, 727,630.74 and 285,551.52 is: 394,061.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,268.78 : 727,630.74 = 285,551.52 : x
  2. Step 2: Convert to fraction form
    527,268.78/727,630.74 = 285,551.52/x
  3. Step 3: Cross multiply
    527,268.78x = 727,630.74 × 285,551.52
  4. Step 4: Simplify right side
    527,268.78x = 207,776,063,805.73
  5. Step 5: Solve for x
    x = 207,776,063,805.73/527,268.78
  6. Step 6: Final answer
    x = 394,061.00

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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.