Home / 1,200,069.97-1,656,114.27-813,003.77

Finding the Fourth Proportional to 1,200,069.97, 1,656,114.27 and 813,003.77

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Solution

The fourth proportional to 1,200,069.97, 1,656,114.27 and 813,003.77 is: 1,121,957.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,069.97 : 1,656,114.27 = 813,003.77 : x
  2. Step 2: Convert to fraction form
    1,200,069.97/1,656,114.27 = 813,003.77/x
  3. Step 3: Cross multiply
    1,200,069.97x = 1,656,114.27 × 813,003.77
  4. Step 4: Simplify right side
    1,200,069.97x = 1,346,427,145,060.80
  5. Step 5: Solve for x
    x = 1,346,427,145,060.80/1,200,069.97
  6. Step 6: Final answer
    x = 1,121,957.21

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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.