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Finding the Fourth Proportional to 515,608.50, 773,381.67 and 306,576.66

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Solution

The fourth proportional to 515,608.50, 773,381.67 and 306,576.66 is: 459,846.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,608.50 : 773,381.67 = 306,576.66 : x
  2. Step 2: Convert to fraction form
    515,608.50/773,381.67 = 306,576.66/x
  3. Step 3: Cross multiply
    515,608.50x = 773,381.67 × 306,576.66
  4. Step 4: Simplify right side
    515,608.50x = 237,100,769,293.82
  5. Step 5: Solve for x
    x = 237,100,769,293.82/515,608.50
  6. Step 6: Final answer
    x = 459,846.51

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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.