Home / 2,162,324.32-2,983,511.52-1,290,989.20

Finding the Fourth Proportional to 2,162,324.32, 2,983,511.52 and 1,290,989.20

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Solution

The fourth proportional to 2,162,324.32, 2,983,511.52 and 1,290,989.20 is: 1,781,268.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162,324.32 : 2,983,511.52 = 1,290,989.20 : x
  2. Step 2: Convert to fraction form
    2,162,324.32/2,983,511.52 = 1,290,989.20/x
  3. Step 3: Cross multiply
    2,162,324.32x = 2,983,511.52 × 1,290,989.20
  4. Step 4: Simplify right side
    2,162,324.32x = 3,851,681,150,395.58
  5. Step 5: Solve for x
    x = 3,851,681,150,395.58/2,162,324.32
  6. Step 6: Final answer
    x = 1,781,268.94

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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.