Home / 629,200.64-868,310.16-342,720.02

Finding the Fourth Proportional to 629,200.64, 868,310.16 and 342,720.02

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Solution

The fourth proportional to 629,200.64, 868,310.16 and 342,720.02 is: 472,960.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,200.64 : 868,310.16 = 342,720.02 : x
  2. Step 2: Convert to fraction form
    629,200.64/868,310.16 = 342,720.02/x
  3. Step 3: Cross multiply
    629,200.64x = 868,310.16 × 342,720.02
  4. Step 4: Simplify right side
    629,200.64x = 297,587,275,401.40
  5. Step 5: Solve for x
    x = 297,587,275,401.40/629,200.64
  6. Step 6: Final answer
    x = 472,960.86

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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.