Home / 1,259,115.54-1,737,579.69-686,155.80

Finding the Fourth Proportional to 1,259,115.54, 1,737,579.69 and 686,155.80

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Solution

The fourth proportional to 1,259,115.54, 1,737,579.69 and 686,155.80 is: 946,895.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,115.54 : 1,737,579.69 = 686,155.80 : x
  2. Step 2: Convert to fraction form
    1,259,115.54/1,737,579.69 = 686,155.80/x
  3. Step 3: Cross multiply
    1,259,115.54x = 1,737,579.69 × 686,155.80
  4. Step 4: Simplify right side
    1,259,115.54x = 1,192,250,382,255.70
  5. Step 5: Solve for x
    x = 1,192,250,382,255.70/1,259,115.54
  6. Step 6: Final answer
    x = 946,895.14

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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.