Home / 579,436.39-799,631.92-321,324.22

Finding the Fourth Proportional to 579,436.39, 799,631.92 and 321,324.22

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Solution

The fourth proportional to 579,436.39, 799,631.92 and 321,324.22 is: 443,432.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,436.39 : 799,631.92 = 321,324.22 : x
  2. Step 2: Convert to fraction form
    579,436.39/799,631.92 = 321,324.22/x
  3. Step 3: Cross multiply
    579,436.39x = 799,631.92 × 321,324.22
  4. Step 4: Simplify right side
    579,436.39x = 256,941,100,788.09
  5. Step 5: Solve for x
    x = 256,941,100,788.09/579,436.39
  6. Step 6: Final answer
    x = 443,432.80

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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.