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Finding the Fourth Proportional to 978,181.10, 1,468,000.65 and 504,622.70

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Solution

The fourth proportional to 978,181.10, 1,468,000.65 and 504,622.70 is: 757,310.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,181.10 : 1,468,000.65 = 504,622.70 : x
  2. Step 2: Convert to fraction form
    978,181.10/1,468,000.65 = 504,622.70/x
  3. Step 3: Cross multiply
    978,181.10x = 1,468,000.65 × 504,622.70
  4. Step 4: Simplify right side
    978,181.10x = 740,786,451,604.76
  5. Step 5: Solve for x
    x = 740,786,451,604.76/978,181.10
  6. Step 6: Final answer
    x = 757,310.13

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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.