Home / 429,721.34-644,691.56-201,972.85

Finding the Fourth Proportional to 429,721.34, 644,691.56 and 201,972.85

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Solution

The fourth proportional to 429,721.34, 644,691.56 and 201,972.85 is: 303,010.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,721.34 : 644,691.56 = 201,972.85 : x
  2. Step 2: Convert to fraction form
    429,721.34/644,691.56 = 201,972.85/x
  3. Step 3: Cross multiply
    429,721.34x = 644,691.56 × 201,972.85
  4. Step 4: Simplify right side
    429,721.34x = 130,210,189,122.55
  5. Step 5: Solve for x
    x = 130,210,189,122.55/429,721.34
  6. Step 6: Final answer
    x = 303,010.76

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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.