Home / 2,127,978.20-3,192,111.30-865,827.80

Finding the Fourth Proportional to 2,127,978.20, 3,192,111.30 and 865,827.80

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Solution

The fourth proportional to 2,127,978.20, 3,192,111.30 and 865,827.80 is: 1,298,800.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127,978.20 : 3,192,111.30 = 865,827.80 : x
  2. Step 2: Convert to fraction form
    2,127,978.20/3,192,111.30 = 865,827.80/x
  3. Step 3: Cross multiply
    2,127,978.20x = 3,192,111.30 × 865,827.80
  4. Step 4: Simplify right side
    2,127,978.20x = 2,763,818,704,234.14
  5. Step 5: Solve for x
    x = 2,763,818,704,234.14/2,127,978.20
  6. Step 6: Final answer
    x = 1,298,800.29

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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.