Home / 2,129,240.40-3,196,193.40-1,331,422.80

Finding the Fourth Proportional to 2,129,240.40, 3,196,193.40 and 1,331,422.80

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Solution

The fourth proportional to 2,129,240.40, 3,196,193.40 and 1,331,422.80 is: 1,998,592.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,240.40 : 3,196,193.40 = 1,331,422.80 : x
  2. Step 2: Convert to fraction form
    2,129,240.40/3,196,193.40 = 1,331,422.80/x
  3. Step 3: Cross multiply
    2,129,240.40x = 3,196,193.40 × 1,331,422.80
  4. Step 4: Simplify right side
    2,129,240.40x = 4,255,484,765,969.52
  5. Step 5: Solve for x
    x = 4,255,484,765,969.52/2,129,240.40
  6. Step 6: Final answer
    x = 1,998,592.91

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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.