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Finding the Fourth Proportional to 1,512,870, 2,267,773.56 and 980,728.80

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Solution

The fourth proportional to 1,512,870, 2,267,773.56 and 980,728.80 is: 1,470,100.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,870 : 2,267,773.56 = 980,728.80 : x
  2. Step 2: Convert to fraction form
    1,512,870/2,267,773.56 = 980,728.80/x
  3. Step 3: Cross multiply
    1,512,870x = 2,267,773.56 × 980,728.80
  4. Step 4: Simplify right side
    1,512,870x = 2,224,070,842,170.53
  5. Step 5: Solve for x
    x = 2,224,070,842,170.53/1,512,870
  6. Step 6: Final answer
    x = 1,470,100.43

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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.