Home / 428,610.55-591,489.36-235,035.87

Finding the Fourth Proportional to 428,610.55, 591,489.36 and 235,035.87

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Solution

The fourth proportional to 428,610.55, 591,489.36 and 235,035.87 is: 324,353.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,610.55 : 591,489.36 = 235,035.87 : x
  2. Step 2: Convert to fraction form
    428,610.55/591,489.36 = 235,035.87/x
  3. Step 3: Cross multiply
    428,610.55x = 591,489.36 × 235,035.87
  4. Step 4: Simplify right side
    428,610.55x = 139,021,217,432.39
  5. Step 5: Solve for x
    x = 139,021,217,432.39/428,610.55
  6. Step 6: Final answer
    x = 324,353.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.