Home / 579,972.21-800,340.75-321,860.46

Finding the Fourth Proportional to 579,972.21, 800,340.75 and 321,860.46

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Solution

The fourth proportional to 579,972.21, 800,340.75 and 321,860.46 is: 444,155.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,972.21 : 800,340.75 = 321,860.46 : x
  2. Step 2: Convert to fraction form
    579,972.21/800,340.75 = 321,860.46/x
  3. Step 3: Cross multiply
    579,972.21x = 800,340.75 × 321,860.46
  4. Step 4: Simplify right side
    579,972.21x = 257,598,041,951.75
  5. Step 5: Solve for x
    x = 257,598,041,951.75/579,972.21
  6. Step 6: Final answer
    x = 444,155.84

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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.