Home / 709,917.80-1,065,168.30-260,853.80

Finding the Fourth Proportional to 709,917.80, 1,065,168.30 and 260,853.80

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Solution

The fourth proportional to 709,917.80, 1,065,168.30 and 260,853.80 is: 391,387.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,917.80 : 1,065,168.30 = 260,853.80 : x
  2. Step 2: Convert to fraction form
    709,917.80/1,065,168.30 = 260,853.80/x
  3. Step 3: Cross multiply
    709,917.80x = 1,065,168.30 × 260,853.80
  4. Step 4: Simplify right side
    709,917.80x = 277,853,198,694.54
  5. Step 5: Solve for x
    x = 277,853,198,694.54/709,917.80
  6. Step 6: Final answer
    x = 391,387.85

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1.5x scale

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.