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Finding the Fourth Proportional to 519,163.89, 716,310.77 and 304,188.45

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Solution

The fourth proportional to 519,163.89, 716,310.77 and 304,188.45 is: 419,700.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,163.89 : 716,310.77 = 304,188.45 : x
  2. Step 2: Convert to fraction form
    519,163.89/716,310.77 = 304,188.45/x
  3. Step 3: Cross multiply
    519,163.89x = 716,310.77 × 304,188.45
  4. Step 4: Simplify right side
    519,163.89x = 217,893,462,844.61
  5. Step 5: Solve for x
    x = 217,893,462,844.61/519,163.89
  6. Step 6: Final answer
    x = 419,700.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.