Home / 2,115,259.80-3,174,704.10-853,992.60

Finding the Fourth Proportional to 2,115,259.80, 3,174,704.10 and 853,992.60

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Solution

The fourth proportional to 2,115,259.80, 3,174,704.10 and 853,992.60 is: 1,281,721.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,259.80 : 3,174,704.10 = 853,992.60 : x
  2. Step 2: Convert to fraction form
    2,115,259.80/3,174,704.10 = 853,992.60/x
  3. Step 3: Cross multiply
    2,115,259.80x = 3,174,704.10 × 853,992.60
  4. Step 4: Simplify right side
    2,115,259.80x = 2,711,173,808,589.66
  5. Step 5: Solve for x
    x = 2,711,173,808,589.66/2,115,259.80
  6. Step 6: Final answer
    x = 1,281,721.43

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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.