Home / 728,090.88-1,092,628.40-254,780.40

Finding the Fourth Proportional to 728,090.88, 1,092,628.40 and 254,780.40

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Solution

The fourth proportional to 728,090.88, 1,092,628.40 and 254,780.40 is: 382,342.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,090.88 : 1,092,628.40 = 254,780.40 : x
  2. Step 2: Convert to fraction form
    728,090.88/1,092,628.40 = 254,780.40/x
  3. Step 3: Cross multiply
    728,090.88x = 1,092,628.40 × 254,780.40
  4. Step 4: Simplify right side
    728,090.88x = 278,380,300,803.36
  5. Step 5: Solve for x
    x = 278,380,300,803.36/728,090.88
  6. Step 6: Final answer
    x = 382,342.79

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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.