Home / 850,617.84-1,275,884.36-318,099.72

Finding the Fourth Proportional to 850,617.84, 1,275,884.36 and 318,099.72

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Solution

The fourth proportional to 850,617.84, 1,275,884.36 and 318,099.72 is: 477,133.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,617.84 : 1,275,884.36 = 318,099.72 : x
  2. Step 2: Convert to fraction form
    850,617.84/1,275,884.36 = 318,099.72/x
  3. Step 3: Cross multiply
    850,617.84x = 1,275,884.36 × 318,099.72
  4. Step 4: Simplify right side
    850,617.84x = 405,858,457,668.38
  5. Step 5: Solve for x
    x = 405,858,457,668.38/850,617.84
  6. Step 6: Final answer
    x = 477,133.72

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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.