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Finding the Fourth Proportional to 706.64, 974.64 and 473.36

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Solution

The fourth proportional to 706.64, 974.64 and 473.36 is: 652.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.64 : 974.64 = 473.36 : x
  2. Step 2: Convert to fraction form
    706.64/974.64 = 473.36/x
  3. Step 3: Cross multiply
    706.64x = 974.64 × 473.36
  4. Step 4: Simplify right side
    706.64x = 461,355.59
  5. Step 5: Solve for x
    x = 461,355.59/706.64
  6. Step 6: Final answer
    x = 652.89

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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.