Home / 689,886.20-1,034,213.70-269,064.20

Finding the Fourth Proportional to 689,886.20, 1,034,213.70 and 269,064.20

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Solution

The fourth proportional to 689,886.20, 1,034,213.70 and 269,064.20 is: 403,356.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,886.20 : 1,034,213.70 = 269,064.20 : x
  2. Step 2: Convert to fraction form
    689,886.20/1,034,213.70 = 269,064.20/x
  3. Step 3: Cross multiply
    689,886.20x = 1,034,213.70 × 269,064.20
  4. Step 4: Simplify right side
    689,886.20x = 278,269,881,819.54
  5. Step 5: Solve for x
    x = 278,269,881,819.54/689,886.20
  6. Step 6: Final answer
    x = 403,356.21

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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.