Home / 419,725.80-579,204.72-228,735.06

Finding the Fourth Proportional to 419,725.80, 579,204.72 and 228,735.06

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Solution

The fourth proportional to 419,725.80, 579,204.72 and 228,735.06 is: 315,645.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,725.80 : 579,204.72 = 228,735.06 : x
  2. Step 2: Convert to fraction form
    419,725.80/579,204.72 = 228,735.06/x
  3. Step 3: Cross multiply
    419,725.80x = 579,204.72 × 228,735.06
  4. Step 4: Simplify right side
    419,725.80x = 132,484,426,381.48
  5. Step 5: Solve for x
    x = 132,484,426,381.48/419,725.80
  6. Step 6: Final answer
    x = 315,645.18

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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.