Home / 629,280.78-868,403.24-342,801.06

Finding the Fourth Proportional to 629,280.78, 868,403.24 and 342,801.06

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Solution

The fourth proportional to 629,280.78, 868,403.24 and 342,801.06 is: 473,063.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,280.78 : 868,403.24 = 342,801.06 : x
  2. Step 2: Convert to fraction form
    629,280.78/868,403.24 = 342,801.06/x
  3. Step 3: Cross multiply
    629,280.78x = 868,403.24 × 342,801.06
  4. Step 4: Simplify right side
    629,280.78x = 297,689,551,179.43
  5. Step 5: Solve for x
    x = 297,689,551,179.43/629,280.78
  6. Step 6: Final answer
    x = 473,063.16

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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.