Home / 1,557,087.53-2,148,777.81-868,718.43

Finding the Fourth Proportional to 1,557,087.53, 2,148,777.81 and 868,718.43

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Solution

The fourth proportional to 1,557,087.53, 2,148,777.81 and 868,718.43 is: 1,198,829.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,087.53 : 2,148,777.81 = 868,718.43 : x
  2. Step 2: Convert to fraction form
    1,557,087.53/2,148,777.81 = 868,718.43/x
  3. Step 3: Cross multiply
    1,557,087.53x = 2,148,777.81 × 868,718.43
  4. Step 4: Simplify right side
    1,557,087.53x = 1,866,682,885,522.04
  5. Step 5: Solve for x
    x = 1,866,682,885,522.04/1,557,087.53
  6. Step 6: Final answer
    x = 1,198,829.77

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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.