Home / 1,438,611.84-2,157,917.14-427,729.41

Finding the Fourth Proportional to 1,438,611.84, 2,157,917.14 and 427,729.41

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Solution

The fourth proportional to 1,438,611.84, 2,157,917.14 and 427,729.41 is: 641,593.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,611.84 : 2,157,917.14 = 427,729.41 : x
  2. Step 2: Convert to fraction form
    1,438,611.84/2,157,917.14 = 427,729.41/x
  3. Step 3: Cross multiply
    1,438,611.84x = 2,157,917.14 × 427,729.41
  4. Step 4: Simplify right side
    1,438,611.84x = 923,004,625,121.09
  5. Step 5: Solve for x
    x = 923,004,625,121.09/1,438,611.84
  6. Step 6: Final answer
    x = 641,593.93

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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.