Home / 827,134.20-1,238,627.70-661,246.20

Finding the Fourth Proportional to 827,134.20, 1,238,627.70 and 661,246.20

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Solution

The fourth proportional to 827,134.20, 1,238,627.70 and 661,246.20 is: 990,211.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,134.20 : 1,238,627.70 = 661,246.20 : x
  2. Step 2: Convert to fraction form
    827,134.20/1,238,627.70 = 661,246.20/x
  3. Step 3: Cross multiply
    827,134.20x = 1,238,627.70 × 661,246.20
  4. Step 4: Simplify right side
    827,134.20x = 819,037,859,839.74
  5. Step 5: Solve for x
    x = 819,037,859,839.74/827,134.20
  6. Step 6: Final answer
    x = 990,211.58

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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.