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Finding the Fourth Proportional to 971,229.20, 1,456,843.80 and 965,008.40

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Solution

The fourth proportional to 971,229.20, 1,456,843.80 and 965,008.40 is: 1,447,512.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,229.20 : 1,456,843.80 = 965,008.40 : x
  2. Step 2: Convert to fraction form
    971,229.20/1,456,843.80 = 965,008.40/x
  3. Step 3: Cross multiply
    971,229.20x = 1,456,843.80 × 965,008.40
  4. Step 4: Simplify right side
    971,229.20x = 1,405,866,504,487.92
  5. Step 5: Solve for x
    x = 1,405,866,504,487.92/971,229.20
  6. Step 6: Final answer
    x = 1,447,512.60

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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.