Home / 1,099,979.06-1,649,975.88-426,135.20

Finding the Fourth Proportional to 1,099,979.06, 1,649,975.88 and 426,135.20

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Solution

The fourth proportional to 1,099,979.06, 1,649,975.88 and 426,135.20 is: 639,205.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,979.06 : 1,649,975.88 = 426,135.20 : x
  2. Step 2: Convert to fraction form
    1,099,979.06/1,649,975.88 = 426,135.20/x
  3. Step 3: Cross multiply
    1,099,979.06x = 1,649,975.88 × 426,135.20
  4. Step 4: Simplify right side
    1,099,979.06x = 703,112,801,618.98
  5. Step 5: Solve for x
    x = 703,112,801,618.98/1,099,979.06
  6. Step 6: Final answer
    x = 639,205.62

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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.