Home / 2,918,771.28-4,378,172.49-1,914,254.37

Finding the Fourth Proportional to 2,918,771.28, 4,378,172.49 and 1,914,254.37

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Solution

The fourth proportional to 2,918,771.28, 4,378,172.49 and 1,914,254.37 is: 2,871,391.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,771.28 : 4,378,172.49 = 1,914,254.37 : x
  2. Step 2: Convert to fraction form
    2,918,771.28/4,378,172.49 = 1,914,254.37/x
  3. Step 3: Cross multiply
    2,918,771.28x = 4,378,172.49 × 1,914,254.37
  4. Step 4: Simplify right side
    2,918,771.28x = 8,380,935,833,963.39
  5. Step 5: Solve for x
    x = 8,380,935,833,963.39/2,918,771.28
  6. Step 6: Final answer
    x = 2,871,391.77

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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.