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Finding the Fourth Proportional to 502.75, 692.91 and 424.27

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Solution

The fourth proportional to 502.75, 692.91 and 424.27 is: 584.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.75 : 692.91 = 424.27 : x
  2. Step 2: Convert to fraction form
    502.75/692.91 = 424.27/x
  3. Step 3: Cross multiply
    502.75x = 692.91 × 424.27
  4. Step 4: Simplify right side
    502.75x = 293,981.79
  5. Step 5: Solve for x
    x = 293,981.79/502.75
  6. Step 6: Final answer
    x = 584.75

Related Problems

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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.