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Finding the Fourth Proportional to 978,025.12, 1,466,880.22 and 267,887.08

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Solution

The fourth proportional to 978,025.12, 1,466,880.22 and 267,887.08 is: 401,787.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,025.12 : 1,466,880.22 = 267,887.08 : x
  2. Step 2: Convert to fraction form
    978,025.12/1,466,880.22 = 267,887.08/x
  3. Step 3: Cross multiply
    978,025.12x = 1,466,880.22 × 267,887.08
  4. Step 4: Simplify right side
    978,025.12x = 392,958,258,845.56
  5. Step 5: Solve for x
    x = 392,958,258,845.56/978,025.12
  6. Step 6: Final answer
    x = 401,787.49

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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.