Home / 808,121.32-1,212,188.03-358,721.37

Finding the Fourth Proportional to 808,121.32, 1,212,188.03 and 358,721.37

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Solution

The fourth proportional to 808,121.32, 1,212,188.03 and 358,721.37 is: 538,084.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,121.32 : 1,212,188.03 = 358,721.37 : x
  2. Step 2: Convert to fraction form
    808,121.32/1,212,188.03 = 358,721.37/x
  3. Step 3: Cross multiply
    808,121.32x = 1,212,188.03 × 358,721.37
  4. Step 4: Simplify right side
    808,121.32x = 434,837,751,716.01
  5. Step 5: Solve for x
    x = 434,837,751,716.01/808,121.32
  6. Step 6: Final answer
    x = 538,084.74

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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.