Home / 2,872,278.72-4,308,405.12-742,181.76

Finding the Fourth Proportional to 2,872,278.72, 4,308,405.12 and 742,181.76

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Solution

The fourth proportional to 2,872,278.72, 4,308,405.12 and 742,181.76 is: 1,113,269.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872,278.72 : 4,308,405.12 = 742,181.76 : x
  2. Step 2: Convert to fraction form
    2,872,278.72/4,308,405.12 = 742,181.76/x
  3. Step 3: Cross multiply
    2,872,278.72x = 4,308,405.12 × 742,181.76
  4. Step 4: Simplify right side
    2,872,278.72x = 3,197,619,694,754.61
  5. Step 5: Solve for x
    x = 3,197,619,694,754.61/2,872,278.72
  6. Step 6: Final answer
    x = 1,113,269.29

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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.