Home / 629,212.68-868,321.08-342,735.12

Finding the Fourth Proportional to 629,212.68, 868,321.08 and 342,735.12

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Solution

The fourth proportional to 629,212.68, 868,321.08 and 342,735.12 is: 472,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,212.68 : 868,321.08 = 342,735.12 : x
  2. Step 2: Convert to fraction form
    629,212.68/868,321.08 = 342,735.12/x
  3. Step 3: Cross multiply
    629,212.68x = 868,321.08 × 342,735.12
  4. Step 4: Simplify right side
    629,212.68x = 297,604,129,552.33
  5. Step 5: Solve for x
    x = 297,604,129,552.33/629,212.68
  6. Step 6: Final answer
    x = 472,978.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.