Home / 808,715.22-1,211,874.78-328,358.90

Finding the Fourth Proportional to 808,715.22, 1,211,874.78 and 328,358.90

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Solution

The fourth proportional to 808,715.22, 1,211,874.78 and 328,358.90 is: 492,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,715.22 : 1,211,874.78 = 328,358.90 : x
  2. Step 2: Convert to fraction form
    808,715.22/1,211,874.78 = 328,358.90/x
  3. Step 3: Cross multiply
    808,715.22x = 1,211,874.78 × 328,358.90
  4. Step 4: Simplify right side
    808,715.22x = 397,929,869,698.54
  5. Step 5: Solve for x
    x = 397,929,869,698.54/808,715.22
  6. Step 6: Final answer
    x = 492,051.91

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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.