Home / 2,167,871.24-2,991,444.11-1,200,820.88

Finding the Fourth Proportional to 2,167,871.24, 2,991,444.11 and 1,200,820.88

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Solution

The fourth proportional to 2,167,871.24, 2,991,444.11 and 1,200,820.88 is: 1,657,011.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167,871.24 : 2,991,444.11 = 1,200,820.88 : x
  2. Step 2: Convert to fraction form
    2,167,871.24/2,991,444.11 = 1,200,820.88/x
  3. Step 3: Cross multiply
    2,167,871.24x = 2,991,444.11 × 1,200,820.88
  4. Step 4: Simplify right side
    2,167,871.24x = 3,592,188,559,121.68
  5. Step 5: Solve for x
    x = 3,592,188,559,121.68/2,167,871.24
  6. Step 6: Final answer
    x = 1,657,011.95

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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.