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Finding the Fourth Proportional to 534.76, 738.39 and 437.56

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Solution

The fourth proportional to 534.76, 738.39 and 437.56 is: 604.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.76 : 738.39 = 437.56 : x
  2. Step 2: Convert to fraction form
    534.76/738.39 = 437.56/x
  3. Step 3: Cross multiply
    534.76x = 738.39 × 437.56
  4. Step 4: Simplify right side
    534.76x = 323,089.93
  5. Step 5: Solve for x
    x = 323,089.93/534.76
  6. Step 6: Final answer
    x = 604.18

Related Problems

Find fourth proportional to 267.38, 369.20 and 218.78
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.