Home / 419,721.04-629,767.46-219,993.94

Finding the Fourth Proportional to 419,721.04, 629,767.46 and 219,993.94

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Solution

The fourth proportional to 419,721.04, 629,767.46 and 219,993.94 is: 330,088.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,721.04 : 629,767.46 = 219,993.94 : x
  2. Step 2: Convert to fraction form
    419,721.04/629,767.46 = 219,993.94/x
  3. Step 3: Cross multiply
    419,721.04x = 629,767.46 × 219,993.94
  4. Step 4: Simplify right side
    419,721.04x = 138,545,024,809.19
  5. Step 5: Solve for x
    x = 138,545,024,809.19/419,721.04
  6. Step 6: Final answer
    x = 330,088.35

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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.