Home / 629,085.68-868,111.20-342,606.48

Finding the Fourth Proportional to 629,085.68, 868,111.20 and 342,606.48

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Solution

The fourth proportional to 629,085.68, 868,111.20 and 342,606.48 is: 472,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,085.68 : 868,111.20 = 342,606.48 : x
  2. Step 2: Convert to fraction form
    629,085.68/868,111.20 = 342,606.48/x
  3. Step 3: Cross multiply
    629,085.68x = 868,111.20 × 342,606.48
  4. Step 4: Simplify right side
    629,085.68x = 297,420,522,480.58
  5. Step 5: Solve for x
    x = 297,420,522,480.58/629,085.68
  6. Step 6: Final answer
    x = 472,782.22

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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.