Home / 865,941.80-1,296,288.30-629,745.80

Finding the Fourth Proportional to 865,941.80, 1,296,288.30 and 629,745.80

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Solution

The fourth proportional to 865,941.80, 1,296,288.30 and 629,745.80 is: 942,710.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,941.80 : 1,296,288.30 = 629,745.80 : x
  2. Step 2: Convert to fraction form
    865,941.80/1,296,288.30 = 629,745.80/x
  3. Step 3: Cross multiply
    865,941.80x = 1,296,288.30 × 629,745.80
  4. Step 4: Simplify right side
    865,941.80x = 816,332,112,514.14
  5. Step 5: Solve for x
    x = 816,332,112,514.14/865,941.80
  6. Step 6: Final answer
    x = 942,710.14

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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.