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Finding the Fourth Proportional to 534.31, 797.57 and 490.97

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Solution

The fourth proportional to 534.31, 797.57 and 490.97 is: 732.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.31 : 797.57 = 490.97 : x
  2. Step 2: Convert to fraction form
    534.31/797.57 = 490.97/x
  3. Step 3: Cross multiply
    534.31x = 797.57 × 490.97
  4. Step 4: Simplify right side
    534.31x = 391,584.32
  5. Step 5: Solve for x
    x = 391,584.32/534.31
  6. Step 6: Final answer
    x = 732.88

Related Problems

Find fourth proportional to 267.15, 398.78 and 245.49
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 (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.