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Finding the Fourth Proportional to 681,502.92, 940,480.46 and 375,590.49

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Solution

The fourth proportional to 681,502.92, 940,480.46 and 375,590.49 is: 518,318.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,502.92 : 940,480.46 = 375,590.49 : x
  2. Step 2: Convert to fraction form
    681,502.92/940,480.46 = 375,590.49/x
  3. Step 3: Cross multiply
    681,502.92x = 940,480.46 × 375,590.49
  4. Step 4: Simplify right side
    681,502.92x = 353,235,510,226.47
  5. Step 5: Solve for x
    x = 353,235,510,226.47/681,502.92
  6. Step 6: Final answer
    x = 518,318.41

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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.