Home / 826,617.80-1,239,926.70-818,744.60

Finding the Fourth Proportional to 826,617.80, 1,239,926.70 and 818,744.60

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Solution

The fourth proportional to 826,617.80, 1,239,926.70 and 818,744.60 is: 1,228,116.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,617.80 : 1,239,926.70 = 818,744.60 : x
  2. Step 2: Convert to fraction form
    826,617.80/1,239,926.70 = 818,744.60/x
  3. Step 3: Cross multiply
    826,617.80x = 1,239,926.70 × 818,744.60
  4. Step 4: Simplify right side
    826,617.80x = 1,015,183,290,020.82
  5. Step 5: Solve for x
    x = 1,015,183,290,020.82/826,617.80
  6. Step 6: Final answer
    x = 1,228,116.90

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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.