Home / 781,469.52-1,172,299.20-220,504.08

Finding the Fourth Proportional to 781,469.52, 1,172,299.20 and 220,504.08

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Solution

The fourth proportional to 781,469.52, 1,172,299.20 and 220,504.08 is: 330,782.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,469.52 : 1,172,299.20 = 220,504.08 : x
  2. Step 2: Convert to fraction form
    781,469.52/1,172,299.20 = 220,504.08/x
  3. Step 3: Cross multiply
    781,469.52x = 1,172,299.20 × 220,504.08
  4. Step 4: Simplify right side
    781,469.52x = 258,496,756,580.74
  5. Step 5: Solve for x
    x = 258,496,756,580.74/781,469.52
  6. Step 6: Final answer
    x = 330,782.90

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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.