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Finding the Fourth Proportional to 607.19, 910.31 and 424.04

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Solution

The fourth proportional to 607.19, 910.31 and 424.04 is: 635.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.19 : 910.31 = 424.04 : x
  2. Step 2: Convert to fraction form
    607.19/910.31 = 424.04/x
  3. Step 3: Cross multiply
    607.19x = 910.31 × 424.04
  4. Step 4: Simplify right side
    607.19x = 386,001.18
  5. Step 5: Solve for x
    x = 386,001.18/607.19
  6. Step 6: Final answer
    x = 635.72

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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.