Home / 728,122.88-1,092,676.36-254,812.34

Finding the Fourth Proportional to 728,122.88, 1,092,676.36 and 254,812.34

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Solution

The fourth proportional to 728,122.88, 1,092,676.36 and 254,812.34 is: 382,390.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,122.88 : 1,092,676.36 = 254,812.34 : x
  2. Step 2: Convert to fraction form
    728,122.88/1,092,676.36 = 254,812.34/x
  3. Step 3: Cross multiply
    728,122.88x = 1,092,676.36 × 254,812.34
  4. Step 4: Simplify right side
    728,122.88x = 278,427,420,154.28
  5. Step 5: Solve for x
    x = 278,427,420,154.28/728,122.88
  6. Step 6: Final answer
    x = 382,390.70

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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.