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Finding the Fourth Proportional to 617.16, 849.96 and 476.76

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Solution

The fourth proportional to 617.16, 849.96 and 476.76 is: 656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.16 : 849.96 = 476.76 : x
  2. Step 2: Convert to fraction form
    617.16/849.96 = 476.76/x
  3. Step 3: Cross multiply
    617.16x = 849.96 × 476.76
  4. Step 4: Simplify right side
    617.16x = 405,226.93
  5. Step 5: Solve for x
    x = 405,226.93/617.16
  6. Step 6: Final answer
    x = 656.60

Related Problems

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Double scale
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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.