Home / 3,108,520.40-4,661,398.20-1,426,139.60

Finding the Fourth Proportional to 3,108,520.40, 4,661,398.20 and 1,426,139.60

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Solution

The fourth proportional to 3,108,520.40, 4,661,398.20 and 1,426,139.60 is: 2,138,575.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108,520.40 : 4,661,398.20 = 1,426,139.60 : x
  2. Step 2: Convert to fraction form
    3,108,520.40/4,661,398.20 = 1,426,139.60/x
  3. Step 3: Cross multiply
    3,108,520.40x = 4,661,398.20 × 1,426,139.60
  4. Step 4: Simplify right side
    3,108,520.40x = 6,647,804,564,388.72
  5. Step 5: Solve for x
    x = 6,647,804,564,388.72/3,108,520.40
  6. Step 6: Final answer
    x = 2,138,575.18

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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.