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Finding the Fourth Proportional to 978,040.82, 1,466,903.86 and 267,902.84

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Solution

The fourth proportional to 978,040.82, 1,466,903.86 and 267,902.84 is: 401,811.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,040.82 : 1,466,903.86 = 267,902.84 : x
  2. Step 2: Convert to fraction form
    978,040.82/1,466,903.86 = 267,902.84/x
  3. Step 3: Cross multiply
    978,040.82x = 1,466,903.86 × 267,902.84
  4. Step 4: Simplify right side
    978,040.82x = 392,987,710,100.96
  5. Step 5: Solve for x
    x = 392,987,710,100.96/978,040.82
  6. Step 6: Final answer
    x = 401,811.15

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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.