Home / 428,846.50-591,420.72-267,716.44

Finding the Fourth Proportional to 428,846.50, 591,420.72 and 267,716.44

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Solution

The fourth proportional to 428,846.50, 591,420.72 and 267,716.44 is: 369,206.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,846.50 : 591,420.72 = 267,716.44 : x
  2. Step 2: Convert to fraction form
    428,846.50/591,420.72 = 267,716.44/x
  3. Step 3: Cross multiply
    428,846.50x = 591,420.72 × 267,716.44
  4. Step 4: Simplify right side
    428,846.50x = 158,333,049,700.64
  5. Step 5: Solve for x
    x = 158,333,049,700.64/428,846.50
  6. Step 6: Final answer
    x = 369,206.81

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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.