Home / 1,419,807.96-1,961,407.71-1,228,489.20

Finding the Fourth Proportional to 1,419,807.96, 1,961,407.71 and 1,228,489.20

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Solution

The fourth proportional to 1,419,807.96, 1,961,407.71 and 1,228,489.20 is: 1,697,108.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,807.96 : 1,961,407.71 = 1,228,489.20 : x
  2. Step 2: Convert to fraction form
    1,419,807.96/1,961,407.71 = 1,228,489.20/x
  3. Step 3: Cross multiply
    1,419,807.96x = 1,961,407.71 × 1,228,489.20
  4. Step 4: Simplify right side
    1,419,807.96x = 2,409,568,188,531.73
  5. Step 5: Solve for x
    x = 2,409,568,188,531.73/1,419,807.96
  6. Step 6: Final answer
    x = 1,697,108.52

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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.