Home / 826,631.80-1,239,947.70-818,758.60

Finding the Fourth Proportional to 826,631.80, 1,239,947.70 and 818,758.60

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Solution

The fourth proportional to 826,631.80, 1,239,947.70 and 818,758.60 is: 1,228,137.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,631.80 : 1,239,947.70 = 818,758.60 : x
  2. Step 2: Convert to fraction form
    826,631.80/1,239,947.70 = 818,758.60/x
  3. Step 3: Cross multiply
    826,631.80x = 1,239,947.70 × 818,758.60
  4. Step 4: Simplify right side
    826,631.80x = 1,015,217,842,925.22
  5. Step 5: Solve for x
    x = 1,015,217,842,925.22/826,631.80
  6. Step 6: Final answer
    x = 1,228,137.90

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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.