Home / 728,004.36-1,092,008.16-328,180.32

Finding the Fourth Proportional to 728,004.36, 1,092,008.16 and 328,180.32

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Solution

The fourth proportional to 728,004.36, 1,092,008.16 and 328,180.32 is: 492,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,004.36 : 1,092,008.16 = 328,180.32 : x
  2. Step 2: Convert to fraction form
    728,004.36/1,092,008.16 = 328,180.32/x
  3. Step 3: Cross multiply
    728,004.36x = 1,092,008.16 × 328,180.32
  4. Step 4: Simplify right side
    728,004.36x = 358,375,587,391.41
  5. Step 5: Solve for x
    x = 358,375,587,391.41/728,004.36
  6. Step 6: Final answer
    x = 492,271.21

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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.