Home / 627,861.60-941,749.20-201,391.20

Finding the Fourth Proportional to 627,861.60, 941,749.20 and 201,391.20

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Solution

The fourth proportional to 627,861.60, 941,749.20 and 201,391.20 is: 302,072.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,861.60 : 941,749.20 = 201,391.20 : x
  2. Step 2: Convert to fraction form
    627,861.60/941,749.20 = 201,391.20/x
  3. Step 3: Cross multiply
    627,861.60x = 941,749.20 × 201,391.20
  4. Step 4: Simplify right side
    627,861.60x = 189,660,001,487.04
  5. Step 5: Solve for x
    x = 189,660,001,487.04/627,861.60
  6. Step 6: Final answer
    x = 302,072.94

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Why These Related Problems?

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