Home / 2,109,729.64-2,911,366.82-1,238,550.60

Finding the Fourth Proportional to 2,109,729.64, 2,911,366.82 and 1,238,550.60

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Solution

The fourth proportional to 2,109,729.64, 2,911,366.82 and 1,238,550.60 is: 1,709,164.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109,729.64 : 2,911,366.82 = 1,238,550.60 : x
  2. Step 2: Convert to fraction form
    2,109,729.64/2,911,366.82 = 1,238,550.60/x
  3. Step 3: Cross multiply
    2,109,729.64x = 2,911,366.82 × 1,238,550.60
  4. Step 4: Simplify right side
    2,109,729.64x = 3,605,875,121,731.09
  5. Step 5: Solve for x
    x = 3,605,875,121,731.09/2,109,729.64
  6. Step 6: Final answer
    x = 1,709,164.56

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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.