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Finding the Fourth Proportional to 511,892.52, 767,240.97 and 385,125.54

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Solution

The fourth proportional to 511,892.52, 767,240.97 and 385,125.54 is: 577,238.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,892.52 : 767,240.97 = 385,125.54 : x
  2. Step 2: Convert to fraction form
    511,892.52/767,240.97 = 385,125.54/x
  3. Step 3: Cross multiply
    511,892.52x = 767,240.97 × 385,125.54
  4. Step 4: Simplify right side
    511,892.52x = 295,484,092,881.37
  5. Step 5: Solve for x
    x = 295,484,092,881.37/511,892.52
  6. Step 6: Final answer
    x = 577,238.54

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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.