Home / 1,260,687.68-1,881,198.90-1,124,817.78

Finding the Fourth Proportional to 1,260,687.68, 1,881,198.90 and 1,124,817.78

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Solution

The fourth proportional to 1,260,687.68, 1,881,198.90 and 1,124,817.78 is: 1,678,453.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,687.68 : 1,881,198.90 = 1,124,817.78 : x
  2. Step 2: Convert to fraction form
    1,260,687.68/1,881,198.90 = 1,124,817.78/x
  3. Step 3: Cross multiply
    1,260,687.68x = 1,881,198.90 × 1,124,817.78
  4. Step 4: Simplify right side
    1,260,687.68x = 2,116,005,970,436.44
  5. Step 5: Solve for x
    x = 2,116,005,970,436.44/1,260,687.68
  6. Step 6: Final answer
    x = 1,678,453.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.