Home / 980,427.20-1,469,085.60-647,614.40

Finding the Fourth Proportional to 980,427.20, 1,469,085.60 and 647,614.40

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Solution

The fourth proportional to 980,427.20, 1,469,085.60 and 647,614.40 is: 970,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,427.20 : 1,469,085.60 = 647,614.40 : x
  2. Step 2: Convert to fraction form
    980,427.20/1,469,085.60 = 647,614.40/x
  3. Step 3: Cross multiply
    980,427.20x = 1,469,085.60 × 647,614.40
  4. Step 4: Simplify right side
    980,427.20x = 951,400,989,392.64
  5. Step 5: Solve for x
    x = 951,400,989,392.64/980,427.20
  6. Step 6: Final answer
    x = 970,394.32

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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.