Home / 2,660,041.22-3,990,622.91-862,785.11

Finding the Fourth Proportional to 2,660,041.22, 3,990,622.91 and 862,785.11

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Solution

The fourth proportional to 2,660,041.22, 3,990,622.91 and 862,785.11 is: 1,294,359.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,041.22 : 3,990,622.91 = 862,785.11 : x
  2. Step 2: Convert to fraction form
    2,660,041.22/3,990,622.91 = 862,785.11/x
  3. Step 3: Cross multiply
    2,660,041.22x = 3,990,622.91 × 862,785.11
  4. Step 4: Simplify right side
    2,660,041.22x = 3,443,050,026,372.87
  5. Step 5: Solve for x
    x = 3,443,050,026,372.87/2,660,041.22
  6. Step 6: Final answer
    x = 1,294,359.65

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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.