Home / 1,245,553.20-1,718,990.41-762,437.61

Finding the Fourth Proportional to 1,245,553.20, 1,718,990.41 and 762,437.61

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Solution

The fourth proportional to 1,245,553.20, 1,718,990.41 and 762,437.61 is: 1,052,241.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,553.20 : 1,718,990.41 = 762,437.61 : x
  2. Step 2: Convert to fraction form
    1,245,553.20/1,718,990.41 = 762,437.61/x
  3. Step 3: Cross multiply
    1,245,553.20x = 1,718,990.41 × 762,437.61
  4. Step 4: Simplify right side
    1,245,553.20x = 1,310,622,939,813.32
  5. Step 5: Solve for x
    x = 1,310,622,939,813.32/1,245,553.20
  6. Step 6: Final answer
    x = 1,052,241.64

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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.