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Finding the Fourth Proportional to 744,318.72, 1,027,427.04 and 442,512

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Solution

The fourth proportional to 744,318.72, 1,027,427.04 and 442,512 is: 610,825.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,318.72 : 1,027,427.04 = 442,512 : x
  2. Step 2: Convert to fraction form
    744,318.72/1,027,427.04 = 442,512/x
  3. Step 3: Cross multiply
    744,318.72x = 1,027,427.04 × 442,512
  4. Step 4: Simplify right side
    744,318.72x = 454,648,794,324.48
  5. Step 5: Solve for x
    x = 454,648,794,324.48/744,318.72
  6. Step 6: Final answer
    x = 610,825.42

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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.