Home / 744,378.73-1,027,476.83-422,302.88

Finding the Fourth Proportional to 744,378.73, 1,027,476.83 and 422,302.88

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Solution

The fourth proportional to 744,378.73, 1,027,476.83 and 422,302.88 is: 582,910.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,378.73 : 1,027,476.83 = 422,302.88 : x
  2. Step 2: Convert to fraction form
    744,378.73/1,027,476.83 = 422,302.88/x
  3. Step 3: Cross multiply
    744,378.73x = 1,027,476.83 × 422,302.88
  4. Step 4: Simplify right side
    744,378.73x = 433,906,428,066.72
  5. Step 5: Solve for x
    x = 433,906,428,066.72/744,378.73
  6. Step 6: Final answer
    x = 582,910.84

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Double scale
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1.5x scale

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.