Home / 419,739.03-579,225.20-228,748.59

Finding the Fourth Proportional to 419,739.03, 579,225.20 and 228,748.59

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Solution

The fourth proportional to 419,739.03, 579,225.20 and 228,748.59 is: 315,665.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,739.03 : 579,225.20 = 228,748.59 : x
  2. Step 2: Convert to fraction form
    419,739.03/579,225.20 = 228,748.59/x
  3. Step 3: Cross multiply
    419,739.03x = 579,225.20 × 228,748.59
  4. Step 4: Simplify right side
    419,739.03x = 132,496,946,648.73
  5. Step 5: Solve for x
    x = 132,496,946,648.73/419,739.03
  6. Step 6: Final answer
    x = 315,665.06

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1.5x scale

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.