Home / 1,338,186.40-2,005,724.40-539,072.80

Finding the Fourth Proportional to 1,338,186.40, 2,005,724.40 and 539,072.80

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Solution

The fourth proportional to 1,338,186.40, 2,005,724.40 and 539,072.80 is: 807,982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,186.40 : 2,005,724.40 = 539,072.80 : x
  2. Step 2: Convert to fraction form
    1,338,186.40/2,005,724.40 = 539,072.80/x
  3. Step 3: Cross multiply
    1,338,186.40x = 2,005,724.40 × 539,072.80
  4. Step 4: Simplify right side
    1,338,186.40x = 1,081,231,468,336.32
  5. Step 5: Solve for x
    x = 1,081,231,468,336.32/1,338,186.40
  6. Step 6: Final answer
    x = 807,982.71

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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.