Home / 992,695.38-1,488,902.46-318,687.92

Finding the Fourth Proportional to 992,695.38, 1,488,902.46 and 318,687.92

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Solution

The fourth proportional to 992,695.38, 1,488,902.46 and 318,687.92 is: 477,986.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,695.38 : 1,488,902.46 = 318,687.92 : x
  2. Step 2: Convert to fraction form
    992,695.38/1,488,902.46 = 318,687.92/x
  3. Step 3: Cross multiply
    992,695.38x = 1,488,902.46 × 318,687.92
  4. Step 4: Simplify right side
    992,695.38x = 474,495,228,060.28
  5. Step 5: Solve for x
    x = 474,495,228,060.28/992,695.38
  6. Step 6: Final answer
    x = 477,986.74

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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.