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Finding the Fourth Proportional to 419,731.03, 579,211.92 and 228,740.32

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Solution

The fourth proportional to 419,731.03, 579,211.92 and 228,740.32 is: 315,652.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,731.03 : 579,211.92 = 228,740.32 : x
  2. Step 2: Convert to fraction form
    419,731.03/579,211.92 = 228,740.32/x
  3. Step 3: Cross multiply
    419,731.03x = 579,211.92 × 228,740.32
  4. Step 4: Simplify right side
    419,731.03x = 132,489,119,928.61
  5. Step 5: Solve for x
    x = 132,489,119,928.61/419,731.03
  6. Step 6: Final answer
    x = 315,652.43

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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.