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Finding the Fourth Proportional to 325,601.10, 488,401.65 and 311,777.10

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Solution

The fourth proportional to 325,601.10, 488,401.65 and 311,777.10 is: 467,665.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,601.10 : 488,401.65 = 311,777.10 : x
  2. Step 2: Convert to fraction form
    325,601.10/488,401.65 = 311,777.10/x
  3. Step 3: Cross multiply
    325,601.10x = 488,401.65 × 311,777.10
  4. Step 4: Simplify right side
    325,601.10x = 152,272,450,072.22
  5. Step 5: Solve for x
    x = 152,272,450,072.22/325,601.10
  6. Step 6: Final answer
    x = 467,665.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.