Home / 413,579.28-620,372.16-226,488.72

Finding the Fourth Proportional to 413,579.28, 620,372.16 and 226,488.72

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Solution

The fourth proportional to 413,579.28, 620,372.16 and 226,488.72 is: 339,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,579.28 : 620,372.16 = 226,488.72 : x
  2. Step 2: Convert to fraction form
    413,579.28/620,372.16 = 226,488.72/x
  3. Step 3: Cross multiply
    413,579.28x = 620,372.16 × 226,488.72
  4. Step 4: Simplify right side
    413,579.28x = 140,507,296,442.04
  5. Step 5: Solve for x
    x = 140,507,296,442.04/413,579.28
  6. Step 6: Final answer
    x = 339,734.85

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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.