Home / 3,781,419.84-5,220,914.76-2,908,704.78

Finding the Fourth Proportional to 3,781,419.84, 5,220,914.76 and 2,908,704.78

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Solution

The fourth proportional to 3,781,419.84, 5,220,914.76 and 2,908,704.78 is: 4,015,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781,419.84 : 5,220,914.76 = 2,908,704.78 : x
  2. Step 2: Convert to fraction form
    3,781,419.84/5,220,914.76 = 2,908,704.78/x
  3. Step 3: Cross multiply
    3,781,419.84x = 5,220,914.76 × 2,908,704.78
  4. Step 4: Simplify right side
    3,781,419.84x = 15,186,099,718,384.55
  5. Step 5: Solve for x
    x = 15,186,099,718,384.55/3,781,419.84
  6. Step 6: Final answer
    x = 4,015,978.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.