Home / 2,138,690.73-3,208,036.10-718,746.78

Finding the Fourth Proportional to 2,138,690.73, 3,208,036.10 and 718,746.78

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Solution

The fourth proportional to 2,138,690.73, 3,208,036.10 and 718,746.78 is: 1,078,120.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,690.73 : 3,208,036.10 = 718,746.78 : x
  2. Step 2: Convert to fraction form
    2,138,690.73/3,208,036.10 = 718,746.78/x
  3. Step 3: Cross multiply
    2,138,690.73x = 3,208,036.10 × 718,746.78
  4. Step 4: Simplify right side
    2,138,690.73x = 2,305,765,613,405.02
  5. Step 5: Solve for x
    x = 2,305,765,613,405.02/2,138,690.73
  6. Step 6: Final answer
    x = 1,078,120.17

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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.