Home / 808,120.77-1,212,187.22-358,720.82

Finding the Fourth Proportional to 808,120.77, 1,212,187.22 and 358,720.82

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Solution

The fourth proportional to 808,120.77, 1,212,187.22 and 358,720.82 is: 538,083.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,120.77 : 1,212,187.22 = 358,720.82 : x
  2. Step 2: Convert to fraction form
    808,120.77/1,212,187.22 = 358,720.82/x
  3. Step 3: Cross multiply
    808,120.77x = 1,212,187.22 × 358,720.82
  4. Step 4: Simplify right side
    808,120.77x = 434,836,785,697.38
  5. Step 5: Solve for x
    x = 434,836,785,697.38/808,120.77
  6. Step 6: Final answer
    x = 538,083.91

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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.