Home / 728,902.80-1,092,552.30-255,344.40

Finding the Fourth Proportional to 728,902.80, 1,092,552.30 and 255,344.40

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Solution

The fourth proportional to 728,902.80, 1,092,552.30 and 255,344.40 is: 382,735.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,902.80 : 1,092,552.30 = 255,344.40 : x
  2. Step 2: Convert to fraction form
    728,902.80/1,092,552.30 = 255,344.40/x
  3. Step 3: Cross multiply
    728,902.80x = 1,092,552.30 × 255,344.40
  4. Step 4: Simplify right side
    728,902.80x = 278,977,111,512.12
  5. Step 5: Solve for x
    x = 278,977,111,512.12/728,902.80
  6. Step 6: Final answer
    x = 382,735.68

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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.