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Finding the Fourth Proportional to 534.72, 738.18 and 524.76

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Solution

The fourth proportional to 534.72, 738.18 and 524.76 is: 724.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.72 : 738.18 = 524.76 : x
  2. Step 2: Convert to fraction form
    534.72/738.18 = 524.76/x
  3. Step 3: Cross multiply
    534.72x = 738.18 × 524.76
  4. Step 4: Simplify right side
    534.72x = 387,367.34
  5. Step 5: Solve for x
    x = 387,367.34/534.72
  6. Step 6: Final answer
    x = 724.43

Related Problems

Find fourth proportional to 267.36, 369.09 and 262.38
Half scale
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Double scale
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Similar ratio
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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.