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Finding the Fourth Proportional to 557,640.10, 836,478.33 and 265,456.52

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Solution

The fourth proportional to 557,640.10, 836,478.33 and 265,456.52 is: 398,193.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,640.10 : 836,478.33 = 265,456.52 : x
  2. Step 2: Convert to fraction form
    557,640.10/836,478.33 = 265,456.52/x
  3. Step 3: Cross multiply
    557,640.10x = 836,478.33 × 265,456.52
  4. Step 4: Simplify right side
    557,640.10x = 222,048,625,989.35
  5. Step 5: Solve for x
    x = 222,048,625,989.35/557,640.10
  6. Step 6: Final answer
    x = 398,193.44

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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.