Home / 428,431.30-591,235.26-237,457.02

Finding the Fourth Proportional to 428,431.30, 591,235.26 and 237,457.02

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Solution

The fourth proportional to 428,431.30, 591,235.26 and 237,457.02 is: 327,690.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,431.30 : 591,235.26 = 237,457.02 : x
  2. Step 2: Convert to fraction form
    428,431.30/591,235.26 = 237,457.02/x
  3. Step 3: Cross multiply
    428,431.30x = 591,235.26 × 237,457.02
  4. Step 4: Simplify right side
    428,431.30x = 140,392,962,958.53
  5. Step 5: Solve for x
    x = 140,392,962,958.53/428,431.30
  6. Step 6: Final answer
    x = 327,690.72

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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.