Home / 729,163.88-1,006,095.93-419,006.56

Finding the Fourth Proportional to 729,163.88, 1,006,095.93 and 419,006.56

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Solution

The fourth proportional to 729,163.88, 1,006,095.93 and 419,006.56 is: 578,142.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,163.88 : 1,006,095.93 = 419,006.56 : x
  2. Step 2: Convert to fraction form
    729,163.88/1,006,095.93 = 419,006.56/x
  3. Step 3: Cross multiply
    729,163.88x = 1,006,095.93 × 419,006.56
  4. Step 4: Simplify right side
    729,163.88x = 421,560,794,659.30
  5. Step 5: Solve for x
    x = 421,560,794,659.30/729,163.88
  6. Step 6: Final answer
    x = 578,142.73

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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.