Home / 1,120,144.94-1,545,916.65-690,414.02

Finding the Fourth Proportional to 1,120,144.94, 1,545,916.65 and 690,414.02

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Solution

The fourth proportional to 1,120,144.94, 1,545,916.65 and 690,414.02 is: 952,843.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,144.94 : 1,545,916.65 = 690,414.02 : x
  2. Step 2: Convert to fraction form
    1,120,144.94/1,545,916.65 = 690,414.02/x
  3. Step 3: Cross multiply
    1,120,144.94x = 1,545,916.65 × 690,414.02
  4. Step 4: Simplify right side
    1,120,144.94x = 1,067,322,528,911.43
  5. Step 5: Solve for x
    x = 1,067,322,528,911.43/1,120,144.94
  6. Step 6: Final answer
    x = 952,843.24

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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.