Home / 481,217.76-663,927.84-279,974.88

Finding the Fourth Proportional to 481,217.76, 663,927.84 and 279,974.88

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Solution

The fourth proportional to 481,217.76, 663,927.84 and 279,974.88 is: 386,276.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,217.76 : 663,927.84 = 279,974.88 : x
  2. Step 2: Convert to fraction form
    481,217.76/663,927.84 = 279,974.88/x
  3. Step 3: Cross multiply
    481,217.76x = 663,927.84 × 279,974.88
  4. Step 4: Simplify right side
    481,217.76x = 185,883,117,332.66
  5. Step 5: Solve for x
    x = 185,883,117,332.66/481,217.76
  6. Step 6: Final answer
    x = 386,276.51

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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.