Home / 485,853.30-669,098.61-417,372.66

Finding the Fourth Proportional to 485,853.30, 669,098.61 and 417,372.66

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Solution

The fourth proportional to 485,853.30, 669,098.61 and 417,372.66 is: 574,789.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,853.30 : 669,098.61 = 417,372.66 : x
  2. Step 2: Convert to fraction form
    485,853.30/669,098.61 = 417,372.66/x
  3. Step 3: Cross multiply
    485,853.30x = 669,098.61 × 417,372.66
  4. Step 4: Simplify right side
    485,853.30x = 279,263,466,658.00
  5. Step 5: Solve for x
    x = 279,263,466,658.00/485,853.30
  6. Step 6: Final answer
    x = 574,789.69

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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.