Home / 2,140,971.92-2,954,268.99-1,223,260.50

Finding the Fourth Proportional to 2,140,971.92, 2,954,268.99 and 1,223,260.50

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Solution

The fourth proportional to 2,140,971.92, 2,954,268.99 and 1,223,260.50 is: 1,687,943.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,971.92 : 2,954,268.99 = 1,223,260.50 : x
  2. Step 2: Convert to fraction form
    2,140,971.92/2,954,268.99 = 1,223,260.50/x
  3. Step 3: Cross multiply
    2,140,971.92x = 2,954,268.99 × 1,223,260.50
  4. Step 4: Simplify right side
    2,140,971.92x = 3,613,840,561,841.90
  5. Step 5: Solve for x
    x = 3,613,840,561,841.90/2,140,971.92
  6. Step 6: Final answer
    x = 1,687,943.94

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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.