Home / 2,680,916.40-4,021,374.60-1,619,233.20

Finding the Fourth Proportional to 2,680,916.40, 4,021,374.60 and 1,619,233.20

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Solution

The fourth proportional to 2,680,916.40, 4,021,374.60 and 1,619,233.20 is: 2,428,849.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680,916.40 : 4,021,374.60 = 1,619,233.20 : x
  2. Step 2: Convert to fraction form
    2,680,916.40/4,021,374.60 = 1,619,233.20/x
  3. Step 3: Cross multiply
    2,680,916.40x = 4,021,374.60 × 1,619,233.20
  4. Step 4: Simplify right side
    2,680,916.40x = 6,511,543,261,956.72
  5. Step 5: Solve for x
    x = 6,511,543,261,956.72/2,680,916.40
  6. Step 6: Final answer
    x = 2,428,849.80

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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.