Home / 1,670,805.64-2,305,716.22-906,859.21

Finding the Fourth Proportional to 1,670,805.64, 2,305,716.22 and 906,859.21

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Solution

The fourth proportional to 1,670,805.64, 2,305,716.22 and 906,859.21 is: 1,251,468.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670,805.64 : 2,305,716.22 = 906,859.21 : x
  2. Step 2: Convert to fraction form
    1,670,805.64/2,305,716.22 = 906,859.21/x
  3. Step 3: Cross multiply
    1,670,805.64x = 2,305,716.22 × 906,859.21
  4. Step 4: Simplify right side
    1,670,805.64x = 2,090,959,978,224.81
  5. Step 5: Solve for x
    x = 2,090,959,978,224.81/1,670,805.64
  6. Step 6: Final answer
    x = 1,251,468.11

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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.