Home / 2,161,371-3,239,399.25-1,212,748.80

Finding the Fourth Proportional to 2,161,371, 3,239,399.25 and 1,212,748.80

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Solution

The fourth proportional to 2,161,371, 3,239,399.25 and 1,212,748.80 is: 1,817,632.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161,371 : 3,239,399.25 = 1,212,748.80 : x
  2. Step 2: Convert to fraction form
    2,161,371/3,239,399.25 = 1,212,748.80/x
  3. Step 3: Cross multiply
    2,161,371x = 3,239,399.25 × 1,212,748.80
  4. Step 4: Simplify right side
    2,161,371x = 3,928,577,553,158.40
  5. Step 5: Solve for x
    x = 3,928,577,553,158.40/2,161,371
  6. Step 6: Final answer
    x = 1,817,632.21

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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.