Home / 971,214.20-1,456,821.30-876,735.80

Finding the Fourth Proportional to 971,214.20, 1,456,821.30 and 876,735.80

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Solution

The fourth proportional to 971,214.20, 1,456,821.30 and 876,735.80 is: 1,315,103.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,214.20 : 1,456,821.30 = 876,735.80 : x
  2. Step 2: Convert to fraction form
    971,214.20/1,456,821.30 = 876,735.80/x
  3. Step 3: Cross multiply
    971,214.20x = 1,456,821.30 × 876,735.80
  4. Step 4: Simplify right side
    971,214.20x = 1,277,247,387,912.54
  5. Step 5: Solve for x
    x = 1,277,247,387,912.54/971,214.20
  6. Step 6: Final answer
    x = 1,315,103.70

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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.