Home / 1,227,941-1,694,673.20-718,643.78

Finding the Fourth Proportional to 1,227,941, 1,694,673.20 and 718,643.78

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Solution

The fourth proportional to 1,227,941, 1,694,673.20 and 718,643.78 is: 991,795.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,941 : 1,694,673.20 = 718,643.78 : x
  2. Step 2: Convert to fraction form
    1,227,941/1,694,673.20 = 718,643.78/x
  3. Step 3: Cross multiply
    1,227,941x = 1,694,673.20 × 718,643.78
  4. Step 4: Simplify right side
    1,227,941x = 1,217,866,350,719.48
  5. Step 5: Solve for x
    x = 1,217,866,350,719.48/1,227,941
  6. Step 6: Final answer
    x = 991,795.49

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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.