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Finding the Fourth Proportional to 607.50, 909.90 and 503.82

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Solution

The fourth proportional to 607.50, 909.90 and 503.82 is: 754.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.50 : 909.90 = 503.82 : x
  2. Step 2: Convert to fraction form
    607.50/909.90 = 503.82/x
  3. Step 3: Cross multiply
    607.50x = 909.90 × 503.82
  4. Step 4: Simplify right side
    607.50x = 458,425.82
  5. Step 5: Solve for x
    x = 458,425.82/607.50
  6. Step 6: Final answer
    x = 754.61

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.