Home / 427,468.38-641,423.09-187,750.39

Finding the Fourth Proportional to 427,468.38, 641,423.09 and 187,750.39

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Solution

The fourth proportional to 427,468.38, 641,423.09 and 187,750.39 is: 281,722.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,468.38 : 641,423.09 = 187,750.39 : x
  2. Step 2: Convert to fraction form
    427,468.38/641,423.09 = 187,750.39/x
  3. Step 3: Cross multiply
    427,468.38x = 641,423.09 × 187,750.39
  4. Step 4: Simplify right side
    427,468.38x = 120,427,435,302.51
  5. Step 5: Solve for x
    x = 120,427,435,302.51/427,468.38
  6. Step 6: Final answer
    x = 281,722.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.