Home / 2,080,211.90-3,120,663.45-818,080.70

Finding the Fourth Proportional to 2,080,211.90, 3,120,663.45 and 818,080.70

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Solution

The fourth proportional to 2,080,211.90, 3,120,663.45 and 818,080.70 is: 1,227,256.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,211.90 : 3,120,663.45 = 818,080.70 : x
  2. Step 2: Convert to fraction form
    2,080,211.90/3,120,663.45 = 818,080.70/x
  3. Step 3: Cross multiply
    2,080,211.90x = 3,120,663.45 × 818,080.70
  4. Step 4: Simplify right side
    2,080,211.90x = 2,552,954,539,640.42
  5. Step 5: Solve for x
    x = 2,552,954,539,640.42/2,080,211.90
  6. Step 6: Final answer
    x = 1,227,256.96

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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.