Home / 428,769.30-591,697.60-235,173.05

Finding the Fourth Proportional to 428,769.30, 591,697.60 and 235,173.05

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Solution

The fourth proportional to 428,769.30, 591,697.60 and 235,173.05 is: 324,536.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,769.30 : 591,697.60 = 235,173.05 : x
  2. Step 2: Convert to fraction form
    428,769.30/591,697.60 = 235,173.05/x
  3. Step 3: Cross multiply
    428,769.30x = 591,697.60 × 235,173.05
  4. Step 4: Simplify right side
    428,769.30x = 139,151,326,311.19
  5. Step 5: Solve for x
    x = 139,151,326,311.19/428,769.30
  6. Step 6: Final answer
    x = 324,536.59

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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.