Home / 728,125.38-1,092,680.10-254,814.84

Finding the Fourth Proportional to 728,125.38, 1,092,680.10 and 254,814.84

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Solution

The fourth proportional to 728,125.38, 1,092,680.10 and 254,814.84 is: 382,394.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,125.38 : 1,092,680.10 = 254,814.84 : x
  2. Step 2: Convert to fraction form
    728,125.38/1,092,680.10 = 254,814.84/x
  3. Step 3: Cross multiply
    728,125.38x = 1,092,680.10 × 254,814.84
  4. Step 4: Simplify right side
    728,125.38x = 278,431,104,852.68
  5. Step 5: Solve for x
    x = 278,431,104,852.68/728,125.38
  6. Step 6: Final answer
    x = 382,394.45

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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.