Home / 456,107.96-684,273.28-321,434.72

Finding the Fourth Proportional to 456,107.96, 684,273.28 and 321,434.72

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Solution

The fourth proportional to 456,107.96, 684,273.28 and 321,434.72 is: 482,230.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,107.96 : 684,273.28 = 321,434.72 : x
  2. Step 2: Convert to fraction form
    456,107.96/684,273.28 = 321,434.72/x
  3. Step 3: Cross multiply
    456,107.96x = 684,273.28 × 321,434.72
  4. Step 4: Simplify right side
    456,107.96x = 219,949,190,160.28
  5. Step 5: Solve for x
    x = 219,949,190,160.28/456,107.96
  6. Step 6: Final answer
    x = 482,230.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.