Home / 428,328.24-591,087.96-267,172.08

Finding the Fourth Proportional to 428,328.24, 591,087.96 and 267,172.08

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Solution

The fourth proportional to 428,328.24, 591,087.96 and 267,172.08 is: 368,694.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,328.24 : 591,087.96 = 267,172.08 : x
  2. Step 2: Convert to fraction form
    428,328.24/591,087.96 = 267,172.08/x
  3. Step 3: Cross multiply
    428,328.24x = 591,087.96 × 267,172.08
  4. Step 4: Simplify right side
    428,328.24x = 157,922,199,736.16
  5. Step 5: Solve for x
    x = 157,922,199,736.16/428,328.24
  6. Step 6: Final answer
    x = 368,694.34

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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.