Home / 859,966.80-1,289,950.20-806,822.70

Finding the Fourth Proportional to 859,966.80, 1,289,950.20 and 806,822.70

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Solution

The fourth proportional to 859,966.80, 1,289,950.20 and 806,822.70 is: 1,210,234.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,966.80 : 1,289,950.20 = 806,822.70 : x
  2. Step 2: Convert to fraction form
    859,966.80/1,289,950.20 = 806,822.70/x
  3. Step 3: Cross multiply
    859,966.80x = 1,289,950.20 × 806,822.70
  4. Step 4: Simplify right side
    859,966.80x = 1,040,761,103,229.54
  5. Step 5: Solve for x
    x = 1,040,761,103,229.54/859,966.80
  6. Step 6: Final answer
    x = 1,210,234.05

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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.