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Finding the Fourth Proportional to 706.73, 975.80 and 458.19

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Solution

The fourth proportional to 706.73, 975.80 and 458.19 is: 632.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.73 : 975.80 = 458.19 : x
  2. Step 2: Convert to fraction form
    706.73/975.80 = 458.19/x
  3. Step 3: Cross multiply
    706.73x = 975.80 × 458.19
  4. Step 4: Simplify right side
    706.73x = 447,101.80
  5. Step 5: Solve for x
    x = 447,101.80/706.73
  6. Step 6: Final answer
    x = 632.63

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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.