Home / 785,257.23-1,177,838.92-279,791.42

Finding the Fourth Proportional to 785,257.23, 1,177,838.92 and 279,791.42

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Solution

The fourth proportional to 785,257.23, 1,177,838.92 and 279,791.42 is: 419,670.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,257.23 : 1,177,838.92 = 279,791.42 : x
  2. Step 2: Convert to fraction form
    785,257.23/1,177,838.92 = 279,791.42/x
  3. Step 3: Cross multiply
    785,257.23x = 1,177,838.92 × 279,791.42
  4. Step 4: Simplify right side
    785,257.23x = 329,549,218,418.61
  5. Step 5: Solve for x
    x = 329,549,218,418.61/785,257.23
  6. Step 6: Final answer
    x = 419,670.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.