Home / 1,099,956.81-1,649,942.51-426,112.95

Finding the Fourth Proportional to 1,099,956.81, 1,649,942.51 and 426,112.95

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Solution

The fourth proportional to 1,099,956.81, 1,649,942.51 and 426,112.95 is: 639,172.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,956.81 : 1,649,942.51 = 426,112.95 : x
  2. Step 2: Convert to fraction form
    1,099,956.81/1,649,942.51 = 426,112.95/x
  3. Step 3: Cross multiply
    1,099,956.81x = 1,649,942.51 × 426,112.95
  4. Step 4: Simplify right side
    1,099,956.81x = 703,061,868,135.94
  5. Step 5: Solve for x
    x = 703,061,868,135.94/1,099,956.81
  6. Step 6: Final answer
    x = 639,172.25

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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.