Home / 579,189.69-799,319.07-321,077.52

Finding the Fourth Proportional to 579,189.69, 799,319.07 and 321,077.52

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Solution

The fourth proportional to 579,189.69, 799,319.07 and 321,077.52 is: 443,107.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,189.69 : 799,319.07 = 321,077.52 : x
  2. Step 2: Convert to fraction form
    579,189.69/799,319.07 = 321,077.52/x
  3. Step 3: Cross multiply
    579,189.69x = 799,319.07 × 321,077.52
  4. Step 4: Simplify right side
    579,189.69x = 256,643,384,684.31
  5. Step 5: Solve for x
    x = 256,643,384,684.31/579,189.69
  6. Step 6: Final answer
    x = 443,107.65

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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.