Home / 419,635.24-579,089.34-228,650.20

Finding the Fourth Proportional to 419,635.24, 579,089.34 and 228,650.20

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Solution

The fourth proportional to 419,635.24, 579,089.34 and 228,650.20 is: 315,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,635.24 : 579,089.34 = 228,650.20 : x
  2. Step 2: Convert to fraction form
    419,635.24/579,089.34 = 228,650.20/x
  3. Step 3: Cross multiply
    419,635.24x = 579,089.34 × 228,650.20
  4. Step 4: Simplify right side
    419,635.24x = 132,408,893,408.87
  5. Step 5: Solve for x
    x = 132,408,893,408.87/419,635.24
  6. Step 6: Final answer
    x = 315,533.30

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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.