Home / 831,522.80-1,248,013.20-494,141.60

Finding the Fourth Proportional to 831,522.80, 1,248,013.20 and 494,141.60

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Solution

The fourth proportional to 831,522.80, 1,248,013.20 and 494,141.60 is: 741,645.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,522.80 : 1,248,013.20 = 494,141.60 : x
  2. Step 2: Convert to fraction form
    831,522.80/1,248,013.20 = 494,141.60/x
  3. Step 3: Cross multiply
    831,522.80x = 1,248,013.20 × 494,141.60
  4. Step 4: Simplify right side
    831,522.80x = 616,695,239,469.12
  5. Step 5: Solve for x
    x = 616,695,239,469.12/831,522.80
  6. Step 6: Final answer
    x = 741,645.62

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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.