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Finding the Fourth Proportional to 681,671.58, 940,663.92 and 375,731.10

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Solution

The fourth proportional to 681,671.58, 940,663.92 and 375,731.10 is: 518,485.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,671.58 : 940,663.92 = 375,731.10 : x
  2. Step 2: Convert to fraction form
    681,671.58/940,663.92 = 375,731.10/x
  3. Step 3: Cross multiply
    681,671.58x = 940,663.92 × 375,731.10
  4. Step 4: Simplify right side
    681,671.58x = 353,436,689,391.91
  5. Step 5: Solve for x
    x = 353,436,689,391.91/681,671.58
  6. Step 6: Final answer
    x = 518,485.29

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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.