Home / 2,856,621.40-4,284,932.10-861,818.20

Finding the Fourth Proportional to 2,856,621.40, 4,284,932.10 and 861,818.20

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Solution

The fourth proportional to 2,856,621.40, 4,284,932.10 and 861,818.20 is: 1,292,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856,621.40 : 4,284,932.10 = 861,818.20 : x
  2. Step 2: Convert to fraction form
    2,856,621.40/4,284,932.10 = 861,818.20/x
  3. Step 3: Cross multiply
    2,856,621.40x = 4,284,932.10 × 861,818.20
  4. Step 4: Simplify right side
    2,856,621.40x = 3,692,832,469,544.22
  5. Step 5: Solve for x
    x = 3,692,832,469,544.22/2,856,621.40
  6. Step 6: Final answer
    x = 1,292,727.30

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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.