Home / 1,099,979-1,649,975.85-426,135.14

Finding the Fourth Proportional to 1,099,979, 1,649,975.85 and 426,135.14

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Solution

The fourth proportional to 1,099,979, 1,649,975.85 and 426,135.14 is: 639,205.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,979 : 1,649,975.85 = 426,135.14 : x
  2. Step 2: Convert to fraction form
    1,099,979/1,649,975.85 = 426,135.14/x
  3. Step 3: Cross multiply
    1,099,979x = 1,649,975.85 × 426,135.14
  4. Step 4: Simplify right side
    1,099,979x = 703,112,689,836.37
  5. Step 5: Solve for x
    x = 703,112,689,836.37/1,099,979
  6. Step 6: Final answer
    x = 639,205.56

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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.