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Finding the Fourth Proportional to 476.39, 711.50 and 473.28

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Solution

The fourth proportional to 476.39, 711.50 and 473.28 is: 706.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.39 : 711.50 = 473.28 : x
  2. Step 2: Convert to fraction form
    476.39/711.50 = 473.28/x
  3. Step 3: Cross multiply
    476.39x = 711.50 × 473.28
  4. Step 4: Simplify right side
    476.39x = 336,736.35
  5. Step 5: Solve for x
    x = 336,736.35/476.39
  6. Step 6: Final answer
    x = 706.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.