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Finding the Fourth Proportional to 706.80, 1,058.52 and 585.36

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Solution

The fourth proportional to 706.80, 1,058.52 and 585.36 is: 876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.80 : 1,058.52 = 585.36 : x
  2. Step 2: Convert to fraction form
    706.80/1,058.52 = 585.36/x
  3. Step 3: Cross multiply
    706.80x = 1,058.52 × 585.36
  4. Step 4: Simplify right side
    706.80x = 619,615.27
  5. Step 5: Solve for x
    x = 619,615.27/706.80
  6. Step 6: Final answer
    x = 876.65

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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.