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Finding the Fourth Proportional to 706.92, 1,058.76 and 634.02

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Solution

The fourth proportional to 706.92, 1,058.76 and 634.02 is: 949.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.92 : 1,058.76 = 634.02 : x
  2. Step 2: Convert to fraction form
    706.92/1,058.76 = 634.02/x
  3. Step 3: Cross multiply
    706.92x = 1,058.76 × 634.02
  4. Step 4: Simplify right side
    706.92x = 671,275.02
  5. Step 5: Solve for x
    x = 671,275.02/706.92
  6. Step 6: Final answer
    x = 949.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.