Home / 1,099,979.31-1,649,976.26-426,135.45

Finding the Fourth Proportional to 1,099,979.31, 1,649,976.26 and 426,135.45

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Solution

The fourth proportional to 1,099,979.31, 1,649,976.26 and 426,135.45 is: 639,206.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,979.31 : 1,649,976.26 = 426,135.45 : x
  2. Step 2: Convert to fraction form
    1,099,979.31/1,649,976.26 = 426,135.45/x
  3. Step 3: Cross multiply
    1,099,979.31x = 1,649,976.26 × 426,135.45
  4. Step 4: Simplify right side
    1,099,979.31x = 703,113,373,913.74
  5. Step 5: Solve for x
    x = 703,113,373,913.74/1,099,979.31
  6. Step 6: Final answer
    x = 639,206.00

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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.