Home / 2,660,720.80-3,991,664.40-863,298.40

Finding the Fourth Proportional to 2,660,720.80, 3,991,664.40 and 863,298.40

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Solution

The fourth proportional to 2,660,720.80, 3,991,664.40 and 863,298.40 is: 1,295,136.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,720.80 : 3,991,664.40 = 863,298.40 : x
  2. Step 2: Convert to fraction form
    2,660,720.80/3,991,664.40 = 863,298.40/x
  3. Step 3: Cross multiply
    2,660,720.80x = 3,991,664.40 × 863,298.40
  4. Step 4: Simplify right side
    2,660,720.80x = 3,445,997,489,856.96
  5. Step 5: Solve for x
    x = 3,445,997,489,856.96/2,660,720.80
  6. Step 6: Final answer
    x = 1,295,136.83

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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.