Home / 811,246.80-1,216,870.20-797,422.80

Finding the Fourth Proportional to 811,246.80, 1,216,870.20 and 797,422.80

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Solution

The fourth proportional to 811,246.80, 1,216,870.20 and 797,422.80 is: 1,196,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,246.80 : 1,216,870.20 = 797,422.80 : x
  2. Step 2: Convert to fraction form
    811,246.80/1,216,870.20 = 797,422.80/x
  3. Step 3: Cross multiply
    811,246.80x = 1,216,870.20 × 797,422.80
  4. Step 4: Simplify right side
    811,246.80x = 970,360,042,120.56
  5. Step 5: Solve for x
    x = 970,360,042,120.56/811,246.80
  6. Step 6: Final answer
    x = 1,196,134.20

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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.