Home / 831,881.91-1,147,997.04-449,908.70

Finding the Fourth Proportional to 831,881.91, 1,147,997.04 and 449,908.70

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Solution

The fourth proportional to 831,881.91, 1,147,997.04 and 449,908.70 is: 620,874.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,881.91 : 1,147,997.04 = 449,908.70 : x
  2. Step 2: Convert to fraction form
    831,881.91/1,147,997.04 = 449,908.70/x
  3. Step 3: Cross multiply
    831,881.91x = 1,147,997.04 × 449,908.70
  4. Step 4: Simplify right side
    831,881.91x = 516,493,848,443.11
  5. Step 5: Solve for x
    x = 516,493,848,443.11/831,881.91
  6. Step 6: Final answer
    x = 620,874.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.