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Finding the Fourth Proportional to 419,617.24, 579,064.50 and 228,632.20

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Solution

The fourth proportional to 419,617.24, 579,064.50 and 228,632.20 is: 315,508.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,617.24 : 579,064.50 = 228,632.20 : x
  2. Step 2: Convert to fraction form
    419,617.24/579,064.50 = 228,632.20/x
  3. Step 3: Cross multiply
    419,617.24x = 579,064.50 × 228,632.20
  4. Step 4: Simplify right side
    419,617.24x = 132,392,790,576.90
  5. Step 5: Solve for x
    x = 132,392,790,576.90/419,617.24
  6. Step 6: Final answer
    x = 315,508.46

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