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Finding the Fourth Proportional to 418,660.65, 577,738.19 and 237,388.73

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Solution

The fourth proportional to 418,660.65, 577,738.19 and 237,388.73 is: 327,588.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,660.65 : 577,738.19 = 237,388.73 : x
  2. Step 2: Convert to fraction form
    418,660.65/577,738.19 = 237,388.73/x
  3. Step 3: Cross multiply
    418,660.65x = 577,738.19 × 237,388.73
  4. Step 4: Simplify right side
    418,660.65x = 137,148,532,565.31
  5. Step 5: Solve for x
    x = 137,148,532,565.31/418,660.65
  6. Step 6: Final answer
    x = 327,588.78

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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.