Home / 728,079.57-1,091,261.56-328,252.23

Finding the Fourth Proportional to 728,079.57, 1,091,261.56 and 328,252.23

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Solution

The fourth proportional to 728,079.57, 1,091,261.56 and 328,252.23 is: 491,991.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,079.57 : 1,091,261.56 = 328,252.23 : x
  2. Step 2: Convert to fraction form
    728,079.57/1,091,261.56 = 328,252.23/x
  3. Step 3: Cross multiply
    728,079.57x = 1,091,261.56 × 328,252.23
  4. Step 4: Simplify right side
    728,079.57x = 358,209,040,583.28
  5. Step 5: Solve for x
    x = 358,209,040,583.28/728,079.57
  6. Step 6: Final answer
    x = 491,991.61

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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.