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Finding the Fourth Proportional to 325,483.45, 488,047.20 and 258,446.11

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Solution

The fourth proportional to 325,483.45, 488,047.20 and 258,446.11 is: 387,527.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,483.45 : 488,047.20 = 258,446.11 : x
  2. Step 2: Convert to fraction form
    325,483.45/488,047.20 = 258,446.11/x
  3. Step 3: Cross multiply
    325,483.45x = 488,047.20 × 258,446.11
  4. Step 4: Simplify right side
    325,483.45x = 126,133,897,824.04
  5. Step 5: Solve for x
    x = 126,133,897,824.04/325,483.45
  6. Step 6: Final answer
    x = 387,527.84

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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.