Home / 579,434.44-799,621.28-321,329.56

Finding the Fourth Proportional to 579,434.44, 799,621.28 and 321,329.56

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Solution

The fourth proportional to 579,434.44, 799,621.28 and 321,329.56 is: 443,435.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,434.44 : 799,621.28 = 321,329.56 : x
  2. Step 2: Convert to fraction form
    579,434.44/799,621.28 = 321,329.56/x
  3. Step 3: Cross multiply
    579,434.44x = 799,621.28 × 321,329.56
  4. Step 4: Simplify right side
    579,434.44x = 256,941,954,069.04
  5. Step 5: Solve for x
    x = 256,941,954,069.04/579,434.44
  6. Step 6: Final answer
    x = 443,435.76

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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.