Home / 1,422,078.20-2,133,117.30-1,328,766.20

Finding the Fourth Proportional to 1,422,078.20, 2,133,117.30 and 1,328,766.20

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Solution

The fourth proportional to 1,422,078.20, 2,133,117.30 and 1,328,766.20 is: 1,993,149.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,078.20 : 2,133,117.30 = 1,328,766.20 : x
  2. Step 2: Convert to fraction form
    1,422,078.20/2,133,117.30 = 1,328,766.20/x
  3. Step 3: Cross multiply
    1,422,078.20x = 2,133,117.30 × 1,328,766.20
  4. Step 4: Simplify right side
    1,422,078.20x = 2,834,414,168,875.26
  5. Step 5: Solve for x
    x = 2,834,414,168,875.26/1,422,078.20
  6. Step 6: Final answer
    x = 1,993,149.30

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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.