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Finding the Fourth Proportional to 978,982.92, 1,468,474.38 and 347,921.64

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Solution

The fourth proportional to 978,982.92, 1,468,474.38 and 347,921.64 is: 521,882.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,982.92 : 1,468,474.38 = 347,921.64 : x
  2. Step 2: Convert to fraction form
    978,982.92/1,468,474.38 = 347,921.64/x
  3. Step 3: Cross multiply
    978,982.92x = 1,468,474.38 × 347,921.64
  4. Step 4: Simplify right side
    978,982.92x = 510,914,014,587.58
  5. Step 5: Solve for x
    x = 510,914,014,587.58/978,982.92
  6. Step 6: Final answer
    x = 521,882.46

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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.