Home / 1,193,882.20-1,792,205.70-721,101.40

Finding the Fourth Proportional to 1,193,882.20, 1,792,205.70 and 721,101.40

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Solution

The fourth proportional to 1,193,882.20, 1,792,205.70 and 721,101.40 is: 1,082,487.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193,882.20 : 1,792,205.70 = 721,101.40 : x
  2. Step 2: Convert to fraction form
    1,193,882.20/1,792,205.70 = 721,101.40/x
  3. Step 3: Cross multiply
    1,193,882.20x = 1,792,205.70 × 721,101.40
  4. Step 4: Simplify right side
    1,193,882.20x = 1,292,362,039,357.98
  5. Step 5: Solve for x
    x = 1,292,362,039,357.98/1,193,882.20
  6. Step 6: Final answer
    x = 1,082,487.07

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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.