Home / 689,864.20-1,034,180.70-269,042.20

Finding the Fourth Proportional to 689,864.20, 1,034,180.70 and 269,042.20

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Solution

The fourth proportional to 689,864.20, 1,034,180.70 and 269,042.20 is: 403,323.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,864.20 : 1,034,180.70 = 269,042.20 : x
  2. Step 2: Convert to fraction form
    689,864.20/1,034,180.70 = 269,042.20/x
  3. Step 3: Cross multiply
    689,864.20x = 1,034,180.70 × 269,042.20
  4. Step 4: Simplify right side
    689,864.20x = 278,238,250,725.54
  5. Step 5: Solve for x
    x = 278,238,250,725.54/689,864.20
  6. Step 6: Final answer
    x = 403,323.22

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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.