Home / 728,587.80-1,092,079.80-255,029.40

Finding the Fourth Proportional to 728,587.80, 1,092,079.80 and 255,029.40

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Solution

The fourth proportional to 728,587.80, 1,092,079.80 and 255,029.40 is: 382,263.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,587.80 : 1,092,079.80 = 255,029.40 : x
  2. Step 2: Convert to fraction form
    728,587.80/1,092,079.80 = 255,029.40/x
  3. Step 3: Cross multiply
    728,587.80x = 1,092,079.80 × 255,029.40
  4. Step 4: Simplify right side
    728,587.80x = 278,512,456,146.12
  5. Step 5: Solve for x
    x = 278,512,456,146.12/728,587.80
  6. Step 6: Final answer
    x = 382,263.41

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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.