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Finding the Fourth Proportional to 648,273.72, 894,662.64 and 361,849.80

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Solution

The fourth proportional to 648,273.72, 894,662.64 and 361,849.80 is: 499,377.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,273.72 : 894,662.64 = 361,849.80 : x
  2. Step 2: Convert to fraction form
    648,273.72/894,662.64 = 361,849.80/x
  3. Step 3: Cross multiply
    648,273.72x = 894,662.64 × 361,849.80
  4. Step 4: Simplify right side
    648,273.72x = 323,733,497,351.47
  5. Step 5: Solve for x
    x = 323,733,497,351.47/648,273.72
  6. Step 6: Final answer
    x = 499,377.79

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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.