Home / 992,672.43-1,488,868.05-318,664.98

Finding the Fourth Proportional to 992,672.43, 1,488,868.05 and 318,664.98

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Solution

The fourth proportional to 992,672.43, 1,488,868.05 and 318,664.98 is: 477,952.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,672.43 : 1,488,868.05 = 318,664.98 : x
  2. Step 2: Convert to fraction form
    992,672.43/1,488,868.05 = 318,664.98/x
  3. Step 3: Cross multiply
    992,672.43x = 1,488,868.05 × 318,664.98
  4. Step 4: Simplify right side
    992,672.43x = 474,450,107,375.89
  5. Step 5: Solve for x
    x = 474,450,107,375.89/992,672.43
  6. Step 6: Final answer
    x = 477,952.34

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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.