Home / 419,729.75-579,210.15-228,739.04

Finding the Fourth Proportional to 419,729.75, 579,210.15 and 228,739.04

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Solution

The fourth proportional to 419,729.75, 579,210.15 and 228,739.04 is: 315,650.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,729.75 : 579,210.15 = 228,739.04 : x
  2. Step 2: Convert to fraction form
    419,729.75/579,210.15 = 228,739.04/x
  3. Step 3: Cross multiply
    419,729.75x = 579,210.15 × 228,739.04
  4. Step 4: Simplify right side
    419,729.75x = 132,487,973,669.26
  5. Step 5: Solve for x
    x = 132,487,973,669.26/419,729.75
  6. Step 6: Final answer
    x = 315,650.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.