Home / 419,901.30-629,849.07-104,357.70

Finding the Fourth Proportional to 419,901.30, 629,849.07 and 104,357.70

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Solution

The fourth proportional to 419,901.30, 629,849.07 and 104,357.70 is: 156,535.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,901.30 : 629,849.07 = 104,357.70 : x
  2. Step 2: Convert to fraction form
    419,901.30/629,849.07 = 104,357.70/x
  3. Step 3: Cross multiply
    419,901.30x = 629,849.07 × 104,357.70
  4. Step 4: Simplify right side
    419,901.30x = 65,729,600,292.34
  5. Step 5: Solve for x
    x = 65,729,600,292.34/419,901.30
  6. Step 6: Final answer
    x = 156,535.83

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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.