Home / 1,815,906.78-2,720,178.57-841,902.78

Finding the Fourth Proportional to 1,815,906.78, 2,720,178.57 and 841,902.78

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Solution

The fourth proportional to 1,815,906.78, 2,720,178.57 and 841,902.78 is: 1,261,147.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,906.78 : 2,720,178.57 = 841,902.78 : x
  2. Step 2: Convert to fraction form
    1,815,906.78/2,720,178.57 = 841,902.78/x
  3. Step 3: Cross multiply
    1,815,906.78x = 2,720,178.57 × 841,902.78
  4. Step 4: Simplify right side
    1,815,906.78x = 2,290,125,900,179.42
  5. Step 5: Solve for x
    x = 2,290,125,900,179.42/1,815,906.78
  6. Step 6: Final answer
    x = 1,261,147.28

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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.