Home / 484,330.15-726,605.79-147,418.55

Finding the Fourth Proportional to 484,330.15, 726,605.79 and 147,418.55

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Solution

The fourth proportional to 484,330.15, 726,605.79 and 147,418.55 is: 221,161.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,330.15 : 726,605.79 = 147,418.55 : x
  2. Step 2: Convert to fraction form
    484,330.15/726,605.79 = 147,418.55/x
  3. Step 3: Cross multiply
    484,330.15x = 726,605.79 × 147,418.55
  4. Step 4: Simplify right side
    484,330.15x = 107,115,171,983.41
  5. Step 5: Solve for x
    x = 107,115,171,983.41/484,330.15
  6. Step 6: Final answer
    x = 221,161.48

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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.