Home / 2,543,511.31-3,815,466.84-721,847.31

Finding the Fourth Proportional to 2,543,511.31, 3,815,466.84 and 721,847.31

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Solution

The fourth proportional to 2,543,511.31, 3,815,466.84 and 721,847.31 is: 1,082,827.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543,511.31 : 3,815,466.84 = 721,847.31 : x
  2. Step 2: Convert to fraction form
    2,543,511.31/3,815,466.84 = 721,847.31/x
  3. Step 3: Cross multiply
    2,543,511.31x = 3,815,466.84 × 721,847.31
  4. Step 4: Simplify right side
    2,543,511.31x = 2,754,184,474,848.20
  5. Step 5: Solve for x
    x = 2,754,184,474,848.20/2,543,511.31
  6. Step 6: Final answer
    x = 1,082,827.69

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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.