Home / 1,919,087.20-2,872,381.56-1,413,449.20

Finding the Fourth Proportional to 1,919,087.20, 2,872,381.56 and 1,413,449.20

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Solution

The fourth proportional to 1,919,087.20, 2,872,381.56 and 1,413,449.20 is: 2,115,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,087.20 : 2,872,381.56 = 1,413,449.20 : x
  2. Step 2: Convert to fraction form
    1,919,087.20/2,872,381.56 = 1,413,449.20/x
  3. Step 3: Cross multiply
    1,919,087.20x = 2,872,381.56 × 1,413,449.20
  4. Step 4: Simplify right side
    1,919,087.20x = 4,059,965,418,076.75
  5. Step 5: Solve for x
    x = 4,059,965,418,076.75/1,919,087.20
  6. Step 6: Final answer
    x = 2,115,571.10

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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.