Home / 876,826.80-1,315,240.20-699,679.80

Finding the Fourth Proportional to 876,826.80, 1,315,240.20 and 699,679.80

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Solution

The fourth proportional to 876,826.80, 1,315,240.20 and 699,679.80 is: 1,049,519.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,826.80 : 1,315,240.20 = 699,679.80 : x
  2. Step 2: Convert to fraction form
    876,826.80/1,315,240.20 = 699,679.80/x
  3. Step 3: Cross multiply
    876,826.80x = 1,315,240.20 × 699,679.80
  4. Step 4: Simplify right side
    876,826.80x = 920,247,000,087.96
  5. Step 5: Solve for x
    x = 920,247,000,087.96/876,826.80
  6. Step 6: Final answer
    x = 1,049,519.70

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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.