Home / 1,218,540.21-1,681,638.05-674,676.04

Finding the Fourth Proportional to 1,218,540.21, 1,681,638.05 and 674,676.04

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Solution

The fourth proportional to 1,218,540.21, 1,681,638.05 and 674,676.04 is: 931,082.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,540.21 : 1,681,638.05 = 674,676.04 : x
  2. Step 2: Convert to fraction form
    1,218,540.21/1,681,638.05 = 674,676.04/x
  3. Step 3: Cross multiply
    1,218,540.21x = 1,681,638.05 × 674,676.04
  4. Step 4: Simplify right side
    1,218,540.21x = 1,134,560,900,287.32
  5. Step 5: Solve for x
    x = 1,134,560,900,287.32/1,218,540.21
  6. Step 6: Final answer
    x = 931,082.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.