Home / 1,229,906.97-1,697,274.27-686,028.78

Finding the Fourth Proportional to 1,229,906.97, 1,697,274.27 and 686,028.78

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Solution

The fourth proportional to 1,229,906.97, 1,697,274.27 and 686,028.78 is: 946,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,906.97 : 1,697,274.27 = 686,028.78 : x
  2. Step 2: Convert to fraction form
    1,229,906.97/1,697,274.27 = 686,028.78/x
  3. Step 3: Cross multiply
    1,229,906.97x = 1,697,274.27 × 686,028.78
  4. Step 4: Simplify right side
    1,229,906.97x = 1,164,378,996,773.49
  5. Step 5: Solve for x
    x = 1,164,378,996,773.49/1,229,906.97
  6. Step 6: Final answer
    x = 946,721.20

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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.