Home / 2,668,402.76-3,997,581.78-1,318,985.78

Finding the Fourth Proportional to 2,668,402.76, 3,997,581.78 and 1,318,985.78

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Solution

The fourth proportional to 2,668,402.76, 3,997,581.78 and 1,318,985.78 is: 1,975,996.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668,402.76 : 3,997,581.78 = 1,318,985.78 : x
  2. Step 2: Convert to fraction form
    2,668,402.76/3,997,581.78 = 1,318,985.78/x
  3. Step 3: Cross multiply
    2,668,402.76x = 3,997,581.78 × 1,318,985.78
  4. Step 4: Simplify right side
    2,668,402.76x = 5,272,753,522,207.09
  5. Step 5: Solve for x
    x = 5,272,753,522,207.09/2,668,402.76
  6. Step 6: Final answer
    x = 1,975,996.13

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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.