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Finding the Fourth Proportional to 704, 971.47 and 424.25

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Solution

The fourth proportional to 704, 971.47 and 424.25 is: 585.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    704 : 971.47 = 424.25 : x
  2. Step 2: Convert to fraction form
    704/971.47 = 424.25/x
  3. Step 3: Cross multiply
    704x = 971.47 × 424.25
  4. Step 4: Simplify right side
    704x = 412,146.15
  5. Step 5: Solve for x
    x = 412,146.15/704
  6. Step 6: Final answer
    x = 585.43

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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.