Home / 992,694.38-1,488,900.96-318,686.92

Finding the Fourth Proportional to 992,694.38, 1,488,900.96 and 318,686.92

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Solution

The fourth proportional to 992,694.38, 1,488,900.96 and 318,686.92 is: 477,985.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,694.38 : 1,488,900.96 = 318,686.92 : x
  2. Step 2: Convert to fraction form
    992,694.38/1,488,900.96 = 318,686.92/x
  3. Step 3: Cross multiply
    992,694.38x = 1,488,900.96 × 318,686.92
  4. Step 4: Simplify right side
    992,694.38x = 474,493,257,405.19
  5. Step 5: Solve for x
    x = 474,493,257,405.19/992,694.38
  6. Step 6: Final answer
    x = 477,985.24

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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.