Home / 2,652,685.45-3,979,023.20-831,189.83

Finding the Fourth Proportional to 2,652,685.45, 3,979,023.20 and 831,189.83

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Solution

The fourth proportional to 2,652,685.45, 3,979,023.20 and 831,189.83 is: 1,246,783.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652,685.45 : 3,979,023.20 = 831,189.83 : x
  2. Step 2: Convert to fraction form
    2,652,685.45/3,979,023.20 = 831,189.83/x
  3. Step 3: Cross multiply
    2,652,685.45x = 3,979,023.20 × 831,189.83
  4. Step 4: Simplify right side
    2,652,685.45x = 3,307,323,597,278.94
  5. Step 5: Solve for x
    x = 3,307,323,597,278.94/2,652,685.45
  6. Step 6: Final answer
    x = 1,246,783.18

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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.