Home / 744,330-1,027,144.12-422,061.80

Finding the Fourth Proportional to 744,330, 1,027,144.12 and 422,061.80

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Solution

The fourth proportional to 744,330, 1,027,144.12 and 422,061.80 is: 582,427.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,330 : 1,027,144.12 = 422,061.80 : x
  2. Step 2: Convert to fraction form
    744,330/1,027,144.12 = 422,061.80/x
  3. Step 3: Cross multiply
    744,330x = 1,027,144.12 × 422,061.80
  4. Step 4: Simplify right side
    744,330x = 433,518,296,146.62
  5. Step 5: Solve for x
    x = 433,518,296,146.62/744,330
  6. Step 6: Final answer
    x = 582,427.55

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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.