Home / 428,845.50-591,419.43-267,715.44

Finding the Fourth Proportional to 428,845.50, 591,419.43 and 267,715.44

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Solution

The fourth proportional to 428,845.50, 591,419.43 and 267,715.44 is: 369,205.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,845.50 : 591,419.43 = 267,715.44 : x
  2. Step 2: Convert to fraction form
    428,845.50/591,419.43 = 267,715.44/x
  3. Step 3: Cross multiply
    428,845.50x = 591,419.43 × 267,715.44
  4. Step 4: Simplify right side
    428,845.50x = 158,332,112,927.00
  5. Step 5: Solve for x
    x = 158,332,112,927.00/428,845.50
  6. Step 6: Final answer
    x = 369,205.49

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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.