Home / 591,238.49-815,908.92-319,306.44

Finding the Fourth Proportional to 591,238.49, 815,908.92 and 319,306.44

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Solution

The fourth proportional to 591,238.49, 815,908.92 and 319,306.44 is: 440,642.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,238.49 : 815,908.92 = 319,306.44 : x
  2. Step 2: Convert to fraction form
    591,238.49/815,908.92 = 319,306.44/x
  3. Step 3: Cross multiply
    591,238.49x = 815,908.92 × 319,306.44
  4. Step 4: Simplify right side
    591,238.49x = 260,524,973,492.73
  5. Step 5: Solve for x
    x = 260,524,973,492.73/591,238.49
  6. Step 6: Final answer
    x = 440,642.78

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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.