Home / 808,120.56-1,212,186.90-358,720.62

Finding the Fourth Proportional to 808,120.56, 1,212,186.90 and 358,720.62

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Solution

The fourth proportional to 808,120.56, 1,212,186.90 and 358,720.62 is: 538,083.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,120.56 : 1,212,186.90 = 358,720.62 : x
  2. Step 2: Convert to fraction form
    808,120.56/1,212,186.90 = 358,720.62/x
  3. Step 3: Cross multiply
    808,120.56x = 1,212,186.90 × 358,720.62
  4. Step 4: Simplify right side
    808,120.56x = 434,836,433,123.38
  5. Step 5: Solve for x
    x = 434,836,433,123.38/808,120.56
  6. Step 6: Final answer
    x = 538,083.61

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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.