Home / 579,190.19-799,319.76-321,078.02

Finding the Fourth Proportional to 579,190.19, 799,319.76 and 321,078.02

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Solution

The fourth proportional to 579,190.19, 799,319.76 and 321,078.02 is: 443,108.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,190.19 : 799,319.76 = 321,078.02 : x
  2. Step 2: Convert to fraction form
    579,190.19/799,319.76 = 321,078.02/x
  3. Step 3: Cross multiply
    579,190.19x = 799,319.76 × 321,078.02
  4. Step 4: Simplify right side
    579,190.19x = 256,644,005,887.68
  5. Step 5: Solve for x
    x = 256,644,005,887.68/579,190.19
  6. Step 6: Final answer
    x = 443,108.34

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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.