Home / 1,272,958.38-1,909,029.17-419,838.23

Finding the Fourth Proportional to 1,272,958.38, 1,909,029.17 and 419,838.23

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Solution

The fourth proportional to 1,272,958.38, 1,909,029.17 and 419,838.23 is: 629,622.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,958.38 : 1,909,029.17 = 419,838.23 : x
  2. Step 2: Convert to fraction form
    1,272,958.38/1,909,029.17 = 419,838.23/x
  3. Step 3: Cross multiply
    1,272,958.38x = 1,909,029.17 × 419,838.23
  4. Step 4: Simplify right side
    1,272,958.38x = 801,483,433,573.34
  5. Step 5: Solve for x
    x = 801,483,433,573.34/1,272,958.38
  6. Step 6: Final answer
    x = 629,622.65

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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.