Home / 2,648,958.40-3,969,355.20-1,971,863.20

Finding the Fourth Proportional to 2,648,958.40, 3,969,355.20 and 1,971,863.20

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Solution

The fourth proportional to 2,648,958.40, 3,969,355.20 and 1,971,863.20 is: 2,954,755.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648,958.40 : 3,969,355.20 = 1,971,863.20 : x
  2. Step 2: Convert to fraction form
    2,648,958.40/3,969,355.20 = 1,971,863.20/x
  3. Step 3: Cross multiply
    2,648,958.40x = 3,969,355.20 × 1,971,863.20
  4. Step 4: Simplify right side
    2,648,958.40x = 7,827,025,446,608.64
  5. Step 5: Solve for x
    x = 7,827,025,446,608.64/2,648,958.40
  6. Step 6: Final answer
    x = 2,954,755.89

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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.