Home / 1,985,545.30-2,979,157.92-1,085,936.80

Finding the Fourth Proportional to 1,985,545.30, 2,979,157.92 and 1,085,936.80

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Solution

The fourth proportional to 1,985,545.30, 2,979,157.92 and 1,085,936.80 is: 1,629,364.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,545.30 : 2,979,157.92 = 1,085,936.80 : x
  2. Step 2: Convert to fraction form
    1,985,545.30/2,979,157.92 = 1,085,936.80/x
  3. Step 3: Cross multiply
    1,985,545.30x = 2,979,157.92 × 1,085,936.80
  4. Step 4: Simplify right side
    1,985,545.30x = 3,235,177,218,339.46
  5. Step 5: Solve for x
    x = 3,235,177,218,339.46/1,985,545.30
  6. Step 6: Final answer
    x = 1,629,364.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.