Home / 1,227,942-1,694,674.58-718,644.78

Finding the Fourth Proportional to 1,227,942, 1,694,674.58 and 718,644.78

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Solution

The fourth proportional to 1,227,942, 1,694,674.58 and 718,644.78 is: 991,796.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,942 : 1,694,674.58 = 718,644.78 : x
  2. Step 2: Convert to fraction form
    1,227,942/1,694,674.58 = 718,644.78/x
  3. Step 3: Cross multiply
    1,227,942x = 1,694,674.58 × 718,644.78
  4. Step 4: Simplify right side
    1,227,942x = 1,217,869,037,122.47
  5. Step 5: Solve for x
    x = 1,217,869,037,122.47/1,227,942
  6. Step 6: Final answer
    x = 991,796.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.