Home / 629,269.11-868,404.78-342,788.58

Finding the Fourth Proportional to 629,269.11, 868,404.78 and 342,788.58

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Solution

The fourth proportional to 629,269.11, 868,404.78 and 342,788.58 is: 473,055.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,269.11 : 868,404.78 = 342,788.58 : x
  2. Step 2: Convert to fraction form
    629,269.11/868,404.78 = 342,788.58/x
  3. Step 3: Cross multiply
    629,269.11x = 868,404.78 × 342,788.58
  4. Step 4: Simplify right side
    629,269.11x = 297,679,241,401.41
  5. Step 5: Solve for x
    x = 297,679,241,401.41/629,269.11
  6. Step 6: Final answer
    x = 473,055.54

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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.