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Finding the Fourth Proportional to 476.28, 717.46 and 473.85

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Solution

The fourth proportional to 476.28, 717.46 and 473.85 is: 713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.28 : 717.46 = 473.85 : x
  2. Step 2: Convert to fraction form
    476.28/717.46 = 473.85/x
  3. Step 3: Cross multiply
    476.28x = 717.46 × 473.85
  4. Step 4: Simplify right side
    476.28x = 339,967.24
  5. Step 5: Solve for x
    x = 339,967.24/476.28
  6. Step 6: Final answer
    x = 713.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.