Home / 1,215,672.20-1,821,102.60-1,066,081.40

Finding the Fourth Proportional to 1,215,672.20, 1,821,102.60 and 1,066,081.40

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Solution

The fourth proportional to 1,215,672.20, 1,821,102.60 and 1,066,081.40 is: 1,597,012.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,672.20 : 1,821,102.60 = 1,066,081.40 : x
  2. Step 2: Convert to fraction form
    1,215,672.20/1,821,102.60 = 1,066,081.40/x
  3. Step 3: Cross multiply
    1,215,672.20x = 1,821,102.60 × 1,066,081.40
  4. Step 4: Simplify right side
    1,215,672.20x = 1,941,443,609,351.64
  5. Step 5: Solve for x
    x = 1,941,443,609,351.64/1,215,672.20
  6. Step 6: Final answer
    x = 1,597,012.43

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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.