Home / 648,212.78-894,532.20-361,715.78

Finding the Fourth Proportional to 648,212.78, 894,532.20 and 361,715.78

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Solution

The fourth proportional to 648,212.78, 894,532.20 and 361,715.78 is: 499,166.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,212.78 : 894,532.20 = 361,715.78 : x
  2. Step 2: Convert to fraction form
    648,212.78/894,532.20 = 361,715.78/x
  3. Step 3: Cross multiply
    648,212.78x = 894,532.20 × 361,715.78
  4. Step 4: Simplify right side
    648,212.78x = 323,566,412,458.12
  5. Step 5: Solve for x
    x = 323,566,412,458.12/648,212.78
  6. Step 6: Final answer
    x = 499,166.97

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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.