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Finding the Fourth Proportional to 527,349.96, 727,738.56 and 285,626.88

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Solution

The fourth proportional to 527,349.96, 727,738.56 and 285,626.88 is: 394,162.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,349.96 : 727,738.56 = 285,626.88 : x
  2. Step 2: Convert to fraction form
    527,349.96/727,738.56 = 285,626.88/x
  3. Step 3: Cross multiply
    527,349.96x = 727,738.56 × 285,626.88
  4. Step 4: Simplify right side
    527,349.96x = 207,861,694,348.49
  5. Step 5: Solve for x
    x = 207,861,694,348.49/527,349.96
  6. Step 6: Final answer
    x = 394,162.72

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1.5x scale

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.