Home / 688,759.20-1,033,206.84-215,453.52

Finding the Fourth Proportional to 688,759.20, 1,033,206.84 and 215,453.52

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Solution

The fourth proportional to 688,759.20, 1,033,206.84 and 215,453.52 is: 323,201.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,759.20 : 1,033,206.84 = 215,453.52 : x
  2. Step 2: Convert to fraction form
    688,759.20/1,033,206.84 = 215,453.52/x
  3. Step 3: Cross multiply
    688,759.20x = 1,033,206.84 × 215,453.52
  4. Step 4: Simplify right side
    688,759.20x = 222,608,050,566.08
  5. Step 5: Solve for x
    x = 222,608,050,566.08/688,759.20
  6. Step 6: Final answer
    x = 323,201.56

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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.