Home / 485,321.52-669,782.34-267,569.76

Finding the Fourth Proportional to 485,321.52, 669,782.34 and 267,569.76

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Solution

The fourth proportional to 485,321.52, 669,782.34 and 267,569.76 is: 369,267.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,321.52 : 669,782.34 = 267,569.76 : x
  2. Step 2: Convert to fraction form
    485,321.52/669,782.34 = 267,569.76/x
  3. Step 3: Cross multiply
    485,321.52x = 669,782.34 × 267,569.76
  4. Step 4: Simplify right side
    485,321.52x = 179,213,499,966.04
  5. Step 5: Solve for x
    x = 179,213,499,966.04/485,321.52
  6. Step 6: Final answer
    x = 369,267.57

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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.