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Finding the Fourth Proportional to 557,409.65, 836,109.87 and 331,272.49

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Solution

The fourth proportional to 557,409.65, 836,109.87 and 331,272.49 is: 496,906.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,409.65 : 836,109.87 = 331,272.49 : x
  2. Step 2: Convert to fraction form
    557,409.65/836,109.87 = 331,272.49/x
  3. Step 3: Cross multiply
    557,409.65x = 836,109.87 × 331,272.49
  4. Step 4: Simplify right side
    557,409.65x = 276,980,198,548.48
  5. Step 5: Solve for x
    x = 276,980,198,548.48/557,409.65
  6. Step 6: Final answer
    x = 496,906.00

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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.