Home / 1,086,658.80-1,629,915.30-287,923.20

Finding the Fourth Proportional to 1,086,658.80, 1,629,915.30 and 287,923.20

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Solution

The fourth proportional to 1,086,658.80, 1,629,915.30 and 287,923.20 is: 431,865.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,658.80 : 1,629,915.30 = 287,923.20 : x
  2. Step 2: Convert to fraction form
    1,086,658.80/1,629,915.30 = 287,923.20/x
  3. Step 3: Cross multiply
    1,086,658.80x = 1,629,915.30 × 287,923.20
  4. Step 4: Simplify right side
    1,086,658.80x = 469,290,428,904.96
  5. Step 5: Solve for x
    x = 469,290,428,904.96/1,086,658.80
  6. Step 6: Final answer
    x = 431,865.48

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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.