Home / 823,927.40-1,235,891.10-809,930.60

Finding the Fourth Proportional to 823,927.40, 1,235,891.10 and 809,930.60

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Solution

The fourth proportional to 823,927.40, 1,235,891.10 and 809,930.60 is: 1,214,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,927.40 : 1,235,891.10 = 809,930.60 : x
  2. Step 2: Convert to fraction form
    823,927.40/1,235,891.10 = 809,930.60/x
  3. Step 3: Cross multiply
    823,927.40x = 1,235,891.10 × 809,930.60
  4. Step 4: Simplify right side
    823,927.40x = 1,000,986,020,157.66
  5. Step 5: Solve for x
    x = 1,000,986,020,157.66/823,927.40
  6. Step 6: Final answer
    x = 1,214,895.90

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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.