Home / 527,432.13-727,859.84-285,714.72

Finding the Fourth Proportional to 527,432.13, 727,859.84 and 285,714.72

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Solution

The fourth proportional to 527,432.13, 727,859.84 and 285,714.72 is: 394,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,432.13 : 727,859.84 = 285,714.72 : x
  2. Step 2: Convert to fraction form
    527,432.13/727,859.84 = 285,714.72/x
  3. Step 3: Cross multiply
    527,432.13x = 727,859.84 × 285,714.72
  4. Step 4: Simplify right side
    527,432.13x = 207,960,268,956.27
  5. Step 5: Solve for x
    x = 207,960,268,956.27/527,432.13
  6. Step 6: Final answer
    x = 394,288.21

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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.