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Finding the Fourth Proportional to 557,640.50, 836,478.94 and 265,456.93

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Solution

The fourth proportional to 557,640.50, 836,478.94 and 265,456.93 is: 398,194.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,640.50 : 836,478.94 = 265,456.93 : x
  2. Step 2: Convert to fraction form
    557,640.50/836,478.94 = 265,456.93/x
  3. Step 3: Cross multiply
    557,640.50x = 836,478.94 × 265,456.93
  4. Step 4: Simplify right side
    557,640.50x = 222,049,127,239.66
  5. Step 5: Solve for x
    x = 222,049,127,239.66/557,640.50
  6. Step 6: Final answer
    x = 398,194.05

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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.