Home / 992,393.64-1,488,839.94-318,535.20

Finding the Fourth Proportional to 992,393.64, 1,488,839.94 and 318,535.20

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Solution

The fourth proportional to 992,393.64, 1,488,839.94 and 318,535.20 is: 477,882.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,393.64 : 1,488,839.94 = 318,535.20 : x
  2. Step 2: Convert to fraction form
    992,393.64/1,488,839.94 = 318,535.20/x
  3. Step 3: Cross multiply
    992,393.64x = 1,488,839.94 × 318,535.20
  4. Step 4: Simplify right side
    992,393.64x = 474,247,928,055.89
  5. Step 5: Solve for x
    x = 474,247,928,055.89/992,393.64
  6. Step 6: Final answer
    x = 477,882.88

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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.