Home / 781,515.55-1,172,273.33-220,550.05

Finding the Fourth Proportional to 781,515.55, 1,172,273.33 and 220,550.05

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Solution

The fourth proportional to 781,515.55, 1,172,273.33 and 220,550.05 is: 330,825.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,515.55 : 1,172,273.33 = 220,550.05 : x
  2. Step 2: Convert to fraction form
    781,515.55/1,172,273.33 = 220,550.05/x
  3. Step 3: Cross multiply
    781,515.55x = 1,172,273.33 × 220,550.05
  4. Step 4: Simplify right side
    781,515.55x = 258,544,943,561.88
  5. Step 5: Solve for x
    x = 258,544,943,561.88/781,515.55
  6. Step 6: Final answer
    x = 330,825.08

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Similar ratio
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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.