Home / 579,842.56-800,189.22-321,724.18

Finding the Fourth Proportional to 579,842.56, 800,189.22 and 321,724.18

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Solution

The fourth proportional to 579,842.56, 800,189.22 and 321,724.18 is: 443,982.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,842.56 : 800,189.22 = 321,724.18 : x
  2. Step 2: Convert to fraction form
    579,842.56/800,189.22 = 321,724.18/x
  3. Step 3: Cross multiply
    579,842.56x = 800,189.22 × 321,724.18
  4. Step 4: Simplify right side
    579,842.56x = 257,440,220,649.34
  5. Step 5: Solve for x
    x = 257,440,220,649.34/579,842.56
  6. Step 6: Final answer
    x = 443,982.97

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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.