Home / 419,987.12-629,983.16-104,444.04

Finding the Fourth Proportional to 419,987.12, 629,983.16 and 104,444.04

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Solution

The fourth proportional to 419,987.12, 629,983.16 and 104,444.04 is: 156,666.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,987.12 : 629,983.16 = 104,444.04 : x
  2. Step 2: Convert to fraction form
    419,987.12/629,983.16 = 104,444.04/x
  3. Step 3: Cross multiply
    419,987.12x = 629,983.16 × 104,444.04
  4. Step 4: Simplify right side
    419,987.12x = 65,797,986,362.37
  5. Step 5: Solve for x
    x = 65,797,986,362.37/419,987.12
  6. Step 6: Final answer
    x = 156,666.68

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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.