Home / 428,942.58-591,941.28-237,955.96

Finding the Fourth Proportional to 428,942.58, 591,941.28 and 237,955.96

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Solution

The fourth proportional to 428,942.58, 591,941.28 and 237,955.96 is: 328,379.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,942.58 : 591,941.28 = 237,955.96 : x
  2. Step 2: Convert to fraction form
    428,942.58/591,941.28 = 237,955.96/x
  3. Step 3: Cross multiply
    428,942.58x = 591,941.28 × 237,955.96
  4. Step 4: Simplify right side
    428,942.58x = 140,855,955,546.03
  5. Step 5: Solve for x
    x = 140,855,955,546.03/428,942.58
  6. Step 6: Final answer
    x = 328,379.51

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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.