Home / 1,968,163.76-2,948,649.12-1,427,080.64

Finding the Fourth Proportional to 1,968,163.76, 2,948,649.12 and 1,427,080.64

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Solution

The fourth proportional to 1,968,163.76, 2,948,649.12 and 1,427,080.64 is: 2,138,013.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968,163.76 : 2,948,649.12 = 1,427,080.64 : x
  2. Step 2: Convert to fraction form
    1,968,163.76/2,948,649.12 = 1,427,080.64/x
  3. Step 3: Cross multiply
    1,968,163.76x = 2,948,649.12 × 1,427,080.64
  4. Step 4: Simplify right side
    1,968,163.76x = 4,207,960,073,305.04
  5. Step 5: Solve for x
    x = 4,207,960,073,305.04/1,968,163.76
  6. Step 6: Final answer
    x = 2,138,013.19

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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.