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Finding the Fourth Proportional to 706.42, 1,058.27 and 584.31

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Solution

The fourth proportional to 706.42, 1,058.27 and 584.31 is: 875.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    706.42 : 1,058.27 = 584.31 : x
  2. Step 2: Convert to fraction form
    706.42/1,058.27 = 584.31/x
  3. Step 3: Cross multiply
    706.42x = 1,058.27 × 584.31
  4. Step 4: Simplify right side
    706.42x = 618,358.79
  5. Step 5: Solve for x
    x = 618,358.79/706.42
  6. Step 6: Final answer
    x = 875.34

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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.