Home / 2,119,780.78-3,175,665.84-1,252,629.07

Finding the Fourth Proportional to 2,119,780.78, 3,175,665.84 and 1,252,629.07

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Solution

The fourth proportional to 2,119,780.78, 3,175,665.84 and 1,252,629.07 is: 1,876,576.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,780.78 : 3,175,665.84 = 1,252,629.07 : x
  2. Step 2: Convert to fraction form
    2,119,780.78/3,175,665.84 = 1,252,629.07/x
  3. Step 3: Cross multiply
    2,119,780.78x = 3,175,665.84 × 1,252,629.07
  4. Step 4: Simplify right side
    2,119,780.78x = 3,977,931,347,789.97
  5. Step 5: Solve for x
    x = 3,977,931,347,789.97/2,119,780.78
  6. Step 6: Final answer
    x = 1,876,576.76

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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.