Home / 484,331.95-668,367.66-280,391.50

Finding the Fourth Proportional to 484,331.95, 668,367.66 and 280,391.50

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Solution

The fourth proportional to 484,331.95, 668,367.66 and 280,391.50 is: 386,934.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,331.95 : 668,367.66 = 280,391.50 : x
  2. Step 2: Convert to fraction form
    484,331.95/668,367.66 = 280,391.50/x
  3. Step 3: Cross multiply
    484,331.95x = 668,367.66 × 280,391.50
  4. Step 4: Simplify right side
    484,331.95x = 187,404,609,067.97
  5. Step 5: Solve for x
    x = 187,404,609,067.97/484,331.95
  6. Step 6: Final answer
    x = 386,934.23

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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.