Home / 1,221,862.28-1,686,088.89-677,963.57

Finding the Fourth Proportional to 1,221,862.28, 1,686,088.89 and 677,963.57

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Solution

The fourth proportional to 1,221,862.28, 1,686,088.89 and 677,963.57 is: 935,544.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,862.28 : 1,686,088.89 = 677,963.57 : x
  2. Step 2: Convert to fraction form
    1,221,862.28/1,686,088.89 = 677,963.57/x
  3. Step 3: Cross multiply
    1,221,862.28x = 1,686,088.89 × 677,963.57
  4. Step 4: Simplify right side
    1,221,862.28x = 1,143,106,834,771.29
  5. Step 5: Solve for x
    x = 1,143,106,834,771.29/1,221,862.28
  6. Step 6: Final answer
    x = 935,544.75

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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.