Home / 775,142.55-1,162,638.60-235,403.48

Finding the Fourth Proportional to 775,142.55, 1,162,638.60 and 235,403.48

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Solution

The fourth proportional to 775,142.55, 1,162,638.60 and 235,403.48 is: 353,082.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,142.55 : 1,162,638.60 = 235,403.48 : x
  2. Step 2: Convert to fraction form
    775,142.55/1,162,638.60 = 235,403.48/x
  3. Step 3: Cross multiply
    775,142.55x = 1,162,638.60 × 235,403.48
  4. Step 4: Simplify right side
    775,142.55x = 273,689,166,609.14
  5. Step 5: Solve for x
    x = 273,689,166,609.14/775,142.55
  6. Step 6: Final answer
    x = 353,082.37

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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.