Home / 1,642,820.12-2,265,619.10-1,368,087.73

Finding the Fourth Proportional to 1,642,820.12, 2,265,619.10 and 1,368,087.73

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Solution

The fourth proportional to 1,642,820.12, 2,265,619.10 and 1,368,087.73 is: 1,886,734.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,820.12 : 2,265,619.10 = 1,368,087.73 : x
  2. Step 2: Convert to fraction form
    1,642,820.12/2,265,619.10 = 1,368,087.73/x
  3. Step 3: Cross multiply
    1,642,820.12x = 2,265,619.10 × 1,368,087.73
  4. Step 4: Simplify right side
    1,642,820.12x = 3,099,565,691,563.64
  5. Step 5: Solve for x
    x = 3,099,565,691,563.64/1,642,820.12
  6. Step 6: Final answer
    x = 1,886,734.68

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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.