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Finding the Fourth Proportional to 648,290.44, 894,757.92 and 386,662.52

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Solution

The fourth proportional to 648,290.44, 894,757.92 and 386,662.52 is: 533,664.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,290.44 : 894,757.92 = 386,662.52 : x
  2. Step 2: Convert to fraction form
    648,290.44/894,757.92 = 386,662.52/x
  3. Step 3: Cross multiply
    648,290.44x = 894,757.92 × 386,662.52
  4. Step 4: Simplify right side
    648,290.44x = 345,969,354,046.37
  5. Step 5: Solve for x
    x = 345,969,354,046.37/648,290.44
  6. Step 6: Final answer
    x = 533,664.13

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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.