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Finding the Fourth Proportional to 978,983.92, 1,468,475.88 and 347,922.64

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Solution

The fourth proportional to 978,983.92, 1,468,475.88 and 347,922.64 is: 521,883.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,983.92 : 1,468,475.88 = 347,922.64 : x
  2. Step 2: Convert to fraction form
    978,983.92/1,468,475.88 = 347,922.64/x
  3. Step 3: Cross multiply
    978,983.92x = 1,468,475.88 × 347,922.64
  4. Step 4: Simplify right side
    978,983.92x = 510,916,004,945.92
  5. Step 5: Solve for x
    x = 510,916,004,945.92/978,983.92
  6. Step 6: Final answer
    x = 521,883.96

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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.