Home / 428,640.60-591,560.24-237,715.50

Finding the Fourth Proportional to 428,640.60, 591,560.24 and 237,715.50

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Solution

The fourth proportional to 428,640.60, 591,560.24 and 237,715.50 is: 328,067.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,640.60 : 591,560.24 = 237,715.50 : x
  2. Step 2: Convert to fraction form
    428,640.60/591,560.24 = 237,715.50/x
  3. Step 3: Cross multiply
    428,640.60x = 591,560.24 × 237,715.50
  4. Step 4: Simplify right side
    428,640.60x = 140,623,037,043.14
  5. Step 5: Solve for x
    x = 140,623,037,043.14/428,640.60
  6. Step 6: Final answer
    x = 328,067.47

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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.