Home / 728,586.80-1,092,078.30-255,028.40

Finding the Fourth Proportional to 728,586.80, 1,092,078.30 and 255,028.40

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Solution

The fourth proportional to 728,586.80, 1,092,078.30 and 255,028.40 is: 382,261.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,586.80 : 1,092,078.30 = 255,028.40 : x
  2. Step 2: Convert to fraction form
    728,586.80/1,092,078.30 = 255,028.40/x
  3. Step 3: Cross multiply
    728,586.80x = 1,092,078.30 × 255,028.40
  4. Step 4: Simplify right side
    728,586.80x = 278,510,981,523.72
  5. Step 5: Solve for x
    x = 278,510,981,523.72/728,586.80
  6. Step 6: Final answer
    x = 382,261.91

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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.