Home / 786,942.62-1,180,787.37-407,792.49

Finding the Fourth Proportional to 786,942.62, 1,180,787.37 and 407,792.49

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Solution

The fourth proportional to 786,942.62, 1,180,787.37 and 407,792.49 is: 611,882.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,942.62 : 1,180,787.37 = 407,792.49 : x
  2. Step 2: Convert to fraction form
    786,942.62/1,180,787.37 = 407,792.49/x
  3. Step 3: Cross multiply
    786,942.62x = 1,180,787.37 × 407,792.49
  4. Step 4: Simplify right side
    786,942.62x = 481,516,221,772.85
  5. Step 5: Solve for x
    x = 481,516,221,772.85/786,942.62
  6. Step 6: Final answer
    x = 611,882.25

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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.