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Finding the Fourth Proportional to 579,494.88, 799,751.34 and 321,452.78

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Solution

The fourth proportional to 579,494.88, 799,751.34 and 321,452.78 is: 443,631.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,494.88 : 799,751.34 = 321,452.78 : x
  2. Step 2: Convert to fraction form
    579,494.88/799,751.34 = 321,452.78/x
  3. Step 3: Cross multiply
    579,494.88x = 799,751.34 × 321,452.78
  4. Step 4: Simplify right side
    579,494.88x = 257,082,287,552.97
  5. Step 5: Solve for x
    x = 257,082,287,552.97/579,494.88
  6. Step 6: Final answer
    x = 443,631.68

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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.