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Finding the Fourth Proportional to 606.76, 837.78 and 475.54

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Solution

The fourth proportional to 606.76, 837.78 and 475.54 is: 656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.76 : 837.78 = 475.54 : x
  2. Step 2: Convert to fraction form
    606.76/837.78 = 475.54/x
  3. Step 3: Cross multiply
    606.76x = 837.78 × 475.54
  4. Step 4: Simplify right side
    606.76x = 398,397.90
  5. Step 5: Solve for x
    x = 398,397.90/606.76
  6. Step 6: Final answer
    x = 656.60

Related Problems

Find fourth proportional to 303.38, 418.89 and 237.77
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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.