Home / 1,991,678.17-2,982,472.42-1,234,997.43

Finding the Fourth Proportional to 1,991,678.17, 2,982,472.42 and 1,234,997.43

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Solution

The fourth proportional to 1,991,678.17, 2,982,472.42 and 1,234,997.43 is: 1,849,367.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,678.17 : 2,982,472.42 = 1,234,997.43 : x
  2. Step 2: Convert to fraction form
    1,991,678.17/2,982,472.42 = 1,234,997.43/x
  3. Step 3: Cross multiply
    1,991,678.17x = 2,982,472.42 × 1,234,997.43
  4. Step 4: Simplify right side
    1,991,678.17x = 3,683,345,782,039.57
  5. Step 5: Solve for x
    x = 3,683,345,782,039.57/1,991,678.17
  6. Step 6: Final answer
    x = 1,849,367.95

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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.