Home / 831,977.68-1,247,965.56-271,011.28

Finding the Fourth Proportional to 831,977.68, 1,247,965.56 and 271,011.28

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Solution

The fourth proportional to 831,977.68, 1,247,965.56 and 271,011.28 is: 406,516.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,977.68 : 1,247,965.56 = 271,011.28 : x
  2. Step 2: Convert to fraction form
    831,977.68/1,247,965.56 = 271,011.28/x
  3. Step 3: Cross multiply
    831,977.68x = 1,247,965.56 × 271,011.28
  4. Step 4: Simplify right side
    831,977.68x = 338,212,743,811.52
  5. Step 5: Solve for x
    x = 338,212,743,811.52/831,977.68
  6. Step 6: Final answer
    x = 406,516.61

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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.