Home / 494,159.61-681,431.10-422,775.93

Finding the Fourth Proportional to 494,159.61, 681,431.10 and 422,775.93

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Solution

The fourth proportional to 494,159.61, 681,431.10 and 422,775.93 is: 582,995.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,159.61 : 681,431.10 = 422,775.93 : x
  2. Step 2: Convert to fraction form
    494,159.61/681,431.10 = 422,775.93/x
  3. Step 3: Cross multiply
    494,159.61x = 681,431.10 × 422,775.93
  4. Step 4: Simplify right side
    494,159.61x = 288,092,667,033.42
  5. Step 5: Solve for x
    x = 288,092,667,033.42/494,159.61
  6. Step 6: Final answer
    x = 582,995.17

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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.