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Finding the Fourth Proportional to 744,620, 1,027,497.84 and 422,227.04

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Solution

The fourth proportional to 744,620, 1,027,497.84 and 422,227.04 is: 582,629.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,620 : 1,027,497.84 = 422,227.04 : x
  2. Step 2: Convert to fraction form
    744,620/1,027,497.84 = 422,227.04/x
  3. Step 3: Cross multiply
    744,620x = 1,027,497.84 × 422,227.04
  4. Step 4: Simplify right side
    744,620x = 433,837,371,589.59
  5. Step 5: Solve for x
    x = 433,837,371,589.59/744,620
  6. Step 6: Final answer
    x = 582,629.22

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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.