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Finding the Fourth Proportional to 707.47, 976.33 and 424.04

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Solution

The fourth proportional to 707.47, 976.33 and 424.04 is: 585.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.47 : 976.33 = 424.04 : x
  2. Step 2: Convert to fraction form
    707.47/976.33 = 424.04/x
  3. Step 3: Cross multiply
    707.47x = 976.33 × 424.04
  4. Step 4: Simplify right side
    707.47x = 413,997.43
  5. Step 5: Solve for x
    x = 413,997.43/707.47
  6. Step 6: Final answer
    x = 585.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.