Home / 579,422.99-799,605.51-321,318.11

Finding the Fourth Proportional to 579,422.99, 799,605.51 and 321,318.11

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Solution

The fourth proportional to 579,422.99, 799,605.51 and 321,318.11 is: 443,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,422.99 : 799,605.51 = 321,318.11 : x
  2. Step 2: Convert to fraction form
    579,422.99/799,605.51 = 321,318.11/x
  3. Step 3: Cross multiply
    579,422.99x = 799,605.51 × 321,318.11
  4. Step 4: Simplify right side
    579,422.99x = 256,927,731,218.79
  5. Step 5: Solve for x
    x = 256,927,731,218.79/579,422.99
  6. Step 6: Final answer
    x = 443,419.98

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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.