Home / 629,419.78-868,599.28-342,939.87

Finding the Fourth Proportional to 629,419.78, 868,599.28 and 342,939.87

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Solution

The fourth proportional to 629,419.78, 868,599.28 and 342,939.87 is: 473,257.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,419.78 : 868,599.28 = 342,939.87 : x
  2. Step 2: Convert to fraction form
    629,419.78/868,599.28 = 342,939.87/x
  3. Step 3: Cross multiply
    629,419.78x = 868,599.28 × 342,939.87
  4. Step 4: Simplify right side
    629,419.78x = 297,877,324,165.29
  5. Step 5: Solve for x
    x = 297,877,324,165.29/629,419.78
  6. Step 6: Final answer
    x = 473,257.01

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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.