Home / 579,421.99-799,604.13-321,317.11

Finding the Fourth Proportional to 579,421.99, 799,604.13 and 321,317.11

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Solution

The fourth proportional to 579,421.99, 799,604.13 and 321,317.11 is: 443,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,421.99 : 799,604.13 = 321,317.11 : x
  2. Step 2: Convert to fraction form
    579,421.99/799,604.13 = 321,317.11/x
  3. Step 3: Cross multiply
    579,421.99x = 799,604.13 × 321,317.11
  4. Step 4: Simplify right side
    579,421.99x = 256,926,486,589.08
  5. Step 5: Solve for x
    x = 256,926,486,589.08/579,421.99
  6. Step 6: Final answer
    x = 443,418.60

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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.