Home / 989,076.90-1,483,469.55-279,176.70

Finding the Fourth Proportional to 989,076.90, 1,483,469.55 and 279,176.70

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Solution

The fourth proportional to 989,076.90, 1,483,469.55 and 279,176.70 is: 418,723.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,076.90 : 1,483,469.55 = 279,176.70 : x
  2. Step 2: Convert to fraction form
    989,076.90/1,483,469.55 = 279,176.70/x
  3. Step 3: Cross multiply
    989,076.90x = 1,483,469.55 × 279,176.70
  4. Step 4: Simplify right side
    989,076.90x = 414,150,133,519.49
  5. Step 5: Solve for x
    x = 414,150,133,519.49/989,076.90
  6. Step 6: Final answer
    x = 418,723.90

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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.