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Finding the Fourth Proportional to 3,669,978.45, 5,504,967.68 and 1,649,190.45

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Solution

The fourth proportional to 3,669,978.45, 5,504,967.68 and 1,649,190.45 is: 2,473,785.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669,978.45 : 5,504,967.68 = 1,649,190.45 : x
  2. Step 2: Convert to fraction form
    3,669,978.45/5,504,967.68 = 1,649,190.45/x
  3. Step 3: Cross multiply
    3,669,978.45x = 5,504,967.68 × 1,649,190.45
  4. Step 4: Simplify right side
    3,669,978.45x = 9,078,740,125,414.65
  5. Step 5: Solve for x
    x = 9,078,740,125,414.65/3,669,978.45
  6. Step 6: Final answer
    x = 2,473,785.68

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Double scale
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Similar ratio
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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.