Home / 456,777.20-685,781.40-267,431.60

Finding the Fourth Proportional to 456,777.20, 685,781.40 and 267,431.60

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Solution

The fourth proportional to 456,777.20, 685,781.40 and 267,431.60 is: 401,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,777.20 : 685,781.40 = 267,431.60 : x
  2. Step 2: Convert to fraction form
    456,777.20/685,781.40 = 267,431.60/x
  3. Step 3: Cross multiply
    456,777.20x = 685,781.40 × 267,431.60
  4. Step 4: Simplify right side
    456,777.20x = 183,399,617,052.24
  5. Step 5: Solve for x
    x = 183,399,617,052.24/456,777.20
  6. Step 6: Final answer
    x = 401,507.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.