Home / 853,275.88-1,280,104.68-320,801.52

Finding the Fourth Proportional to 853,275.88, 1,280,104.68 and 320,801.52

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Solution

The fourth proportional to 853,275.88, 1,280,104.68 and 320,801.52 is: 481,274.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,275.88 : 1,280,104.68 = 320,801.52 : x
  2. Step 2: Convert to fraction form
    853,275.88/1,280,104.68 = 320,801.52/x
  3. Step 3: Cross multiply
    853,275.88x = 1,280,104.68 × 320,801.52
  4. Step 4: Simplify right side
    853,275.88x = 410,659,527,103.11
  5. Step 5: Solve for x
    x = 410,659,527,103.11/853,275.88
  6. Step 6: Final answer
    x = 481,274.04

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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.