Home / 981,346.80-1,472,020.20-972,015.60

Finding the Fourth Proportional to 981,346.80, 1,472,020.20 and 972,015.60

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Solution

The fourth proportional to 981,346.80, 1,472,020.20 and 972,015.60 is: 1,458,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,346.80 : 1,472,020.20 = 972,015.60 : x
  2. Step 2: Convert to fraction form
    981,346.80/1,472,020.20 = 972,015.60/x
  3. Step 3: Cross multiply
    981,346.80x = 1,472,020.20 × 972,015.60
  4. Step 4: Simplify right side
    981,346.80x = 1,430,826,597,915.12
  5. Step 5: Solve for x
    x = 1,430,826,597,915.12/981,346.80
  6. Step 6: Final answer
    x = 1,458,023.40

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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.