Home / 579,431.88-799,607.43-321,309.18

Finding the Fourth Proportional to 579,431.88, 799,607.43 and 321,309.18

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Solution

The fourth proportional to 579,431.88, 799,607.43 and 321,309.18 is: 443,401.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,431.88 : 799,607.43 = 321,309.18 : x
  2. Step 2: Convert to fraction form
    579,431.88/799,607.43 = 321,309.18/x
  3. Step 3: Cross multiply
    579,431.88x = 799,607.43 × 321,309.18
  4. Step 4: Simplify right side
    579,431.88x = 256,921,207,655.21
  5. Step 5: Solve for x
    x = 256,921,207,655.21/579,431.88
  6. Step 6: Final answer
    x = 443,401.92

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Double scale
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Similar ratio
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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.