Home / 1,321,859.64-1,982,832.24-629,276.16

Finding the Fourth Proportional to 1,321,859.64, 1,982,832.24 and 629,276.16

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Solution

The fourth proportional to 1,321,859.64, 1,982,832.24 and 629,276.16 is: 943,934.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,859.64 : 1,982,832.24 = 629,276.16 : x
  2. Step 2: Convert to fraction form
    1,321,859.64/1,982,832.24 = 629,276.16/x
  3. Step 3: Cross multiply
    1,321,859.64x = 1,982,832.24 × 629,276.16
  4. Step 4: Simplify right side
    1,321,859.64x = 1,247,749,057,911.40
  5. Step 5: Solve for x
    x = 1,247,749,057,911.40/1,321,859.64
  6. Step 6: Final answer
    x = 943,934.61

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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.