Home / 579,694.13-799,977.16-321,610.21

Finding the Fourth Proportional to 579,694.13, 799,977.16 and 321,610.21

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Solution

The fourth proportional to 579,694.13, 799,977.16 and 321,610.21 is: 443,821.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,694.13 : 799,977.16 = 321,610.21 : x
  2. Step 2: Convert to fraction form
    579,694.13/799,977.16 = 321,610.21/x
  3. Step 3: Cross multiply
    579,694.13x = 799,977.16 × 321,610.21
  4. Step 4: Simplify right side
    579,694.13x = 257,280,820,814.75
  5. Step 5: Solve for x
    x = 257,280,820,814.75/579,694.13
  6. Step 6: Final answer
    x = 443,821.68

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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.