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Finding the Fourth Proportional to 681,452.49, 940,410.66 and 375,539.87

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Solution

The fourth proportional to 681,452.49, 940,410.66 and 375,539.87 is: 518,248.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,452.49 : 940,410.66 = 375,539.87 : x
  2. Step 2: Convert to fraction form
    681,452.49/940,410.66 = 375,539.87/x
  3. Step 3: Cross multiply
    681,452.49x = 940,410.66 × 375,539.87
  4. Step 4: Simplify right side
    681,452.49x = 353,161,692,300.96
  5. Step 5: Solve for x
    x = 353,161,692,300.96/681,452.49
  6. Step 6: Final answer
    x = 518,248.44

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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.