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Finding the Fourth Proportional to 497,883.60, 687,141.09 and 304,251.48

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Solution

The fourth proportional to 497,883.60, 687,141.09 and 304,251.48 is: 419,904.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,883.60 : 687,141.09 = 304,251.48 : x
  2. Step 2: Convert to fraction form
    497,883.60/687,141.09 = 304,251.48/x
  3. Step 3: Cross multiply
    497,883.60x = 687,141.09 × 304,251.48
  4. Step 4: Simplify right side
    497,883.60x = 209,063,693,601.31
  5. Step 5: Solve for x
    x = 209,063,693,601.31/497,883.60
  6. Step 6: Final answer
    x = 419,904.76

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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.