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Finding the Fourth Proportional to 527,452.88, 727,886.86 and 285,734.84

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Solution

The fourth proportional to 527,452.88, 727,886.86 and 285,734.84 is: 394,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,452.88 : 727,886.86 = 285,734.84 : x
  2. Step 2: Convert to fraction form
    527,452.88/727,886.86 = 285,734.84/x
  3. Step 3: Cross multiply
    527,452.88x = 727,886.86 × 285,734.84
  4. Step 4: Simplify right side
    527,452.88x = 207,982,635,480.20
  5. Step 5: Solve for x
    x = 207,982,635,480.20/527,452.88
  6. Step 6: Final answer
    x = 394,315.10

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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.