Home / 992,640.12-1,488,234.24-318,337.62

Finding the Fourth Proportional to 992,640.12, 1,488,234.24 and 318,337.62

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Solution

The fourth proportional to 992,640.12, 1,488,234.24 and 318,337.62 is: 477,273.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,640.12 : 1,488,234.24 = 318,337.62 : x
  2. Step 2: Convert to fraction form
    992,640.12/1,488,234.24 = 318,337.62/x
  3. Step 3: Cross multiply
    992,640.12x = 1,488,234.24 × 318,337.62
  4. Step 4: Simplify right side
    992,640.12x = 473,760,945,964.11
  5. Step 5: Solve for x
    x = 473,760,945,964.11/992,640.12
  6. Step 6: Final answer
    x = 477,273.62

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1.5x scale

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.