Home / 859,540.30-1,289,310.45-786,057.10

Finding the Fourth Proportional to 859,540.30, 1,289,310.45 and 786,057.10

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Solution

The fourth proportional to 859,540.30, 1,289,310.45 and 786,057.10 is: 1,179,085.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,540.30 : 1,289,310.45 = 786,057.10 : x
  2. Step 2: Convert to fraction form
    859,540.30/1,289,310.45 = 786,057.10/x
  3. Step 3: Cross multiply
    859,540.30x = 1,289,310.45 × 786,057.10
  4. Step 4: Simplify right side
    859,540.30x = 1,013,471,633,326.70
  5. Step 5: Solve for x
    x = 1,013,471,633,326.70/859,540.30
  6. Step 6: Final answer
    x = 1,179,085.65

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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.