Home / 992,505.81-1,488,617.90-318,499.95

Finding the Fourth Proportional to 992,505.81, 1,488,617.90 and 318,499.95

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Solution

The fourth proportional to 992,505.81, 1,488,617.90 and 318,499.95 is: 477,704.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,505.81 : 1,488,617.90 = 318,499.95 : x
  2. Step 2: Convert to fraction form
    992,505.81/1,488,617.90 = 318,499.95/x
  3. Step 3: Cross multiply
    992,505.81x = 1,488,617.90 × 318,499.95
  4. Step 4: Simplify right side
    992,505.81x = 474,124,725,126.61
  5. Step 5: Solve for x
    x = 474,124,725,126.61/992,505.81
  6. Step 6: Final answer
    x = 477,704.74

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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.