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Finding the Fourth Proportional to 706.97, 1,058.29 and 637.26

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Solution

The fourth proportional to 706.97, 1,058.29 and 637.26 is: 953.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.97 : 1,058.29 = 637.26 : x
  2. Step 2: Convert to fraction form
    706.97/1,058.29 = 637.26/x
  3. Step 3: Cross multiply
    706.97x = 1,058.29 × 637.26
  4. Step 4: Simplify right side
    706.97x = 674,404.29
  5. Step 5: Solve for x
    x = 674,404.29/706.97
  6. Step 6: Final answer
    x = 953.93

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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.