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Finding the Fourth Proportional to 500.86, 747.91 and 396.98

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Solution

The fourth proportional to 500.86, 747.91 and 396.98 is: 592.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.86 : 747.91 = 396.98 : x
  2. Step 2: Convert to fraction form
    500.86/747.91 = 396.98/x
  3. Step 3: Cross multiply
    500.86x = 747.91 × 396.98
  4. Step 4: Simplify right side
    500.86x = 296,905.31
  5. Step 5: Solve for x
    x = 296,905.31/500.86
  6. Step 6: Final answer
    x = 592.79

Related Problems

Find fourth proportional to 250.43, 373.96 and 198.49
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.