Home / 826,620.30-1,239,930.45-818,747.10

Finding the Fourth Proportional to 826,620.30, 1,239,930.45 and 818,747.10

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Solution

The fourth proportional to 826,620.30, 1,239,930.45 and 818,747.10 is: 1,228,120.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,620.30 : 1,239,930.45 = 818,747.10 : x
  2. Step 2: Convert to fraction form
    826,620.30/1,239,930.45 = 818,747.10/x
  3. Step 3: Cross multiply
    826,620.30x = 1,239,930.45 × 818,747.10
  4. Step 4: Simplify right side
    826,620.30x = 1,015,189,460,139.20
  5. Step 5: Solve for x
    x = 1,015,189,460,139.20/826,620.30
  6. Step 6: Final answer
    x = 1,228,120.65

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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.