Home / 728,091.77-1,092,629.74-254,781.23

Finding the Fourth Proportional to 728,091.77, 1,092,629.74 and 254,781.23

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Solution

The fourth proportional to 728,091.77, 1,092,629.74 and 254,781.23 is: 382,344.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,091.77 : 1,092,629.74 = 254,781.23 : x
  2. Step 2: Convert to fraction form
    728,091.77/1,092,629.74 = 254,781.23/x
  3. Step 3: Cross multiply
    728,091.77x = 1,092,629.74 × 254,781.23
  4. Step 4: Simplify right side
    728,091.77x = 278,381,551,186.40
  5. Step 5: Solve for x
    x = 278,381,551,186.40/728,091.77
  6. Step 6: Final answer
    x = 382,344.04

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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.