Home / 1,418,697.60-2,121,902.40-1,270,012.80

Finding the Fourth Proportional to 1,418,697.60, 2,121,902.40 and 1,270,012.80

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Solution

The fourth proportional to 1,418,697.60, 2,121,902.40 and 1,270,012.80 is: 1,899,519.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,697.60 : 2,121,902.40 = 1,270,012.80 : x
  2. Step 2: Convert to fraction form
    1,418,697.60/2,121,902.40 = 1,270,012.80/x
  3. Step 3: Cross multiply
    1,418,697.60x = 2,121,902.40 × 1,270,012.80
  4. Step 4: Simplify right side
    1,418,697.60x = 2,694,843,208,350.72
  5. Step 5: Solve for x
    x = 2,694,843,208,350.72/1,418,697.60
  6. Step 6: Final answer
    x = 1,899,519.11

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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.