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Finding the Fourth Proportional to 653,207.08, 979,872.24 and 253,878.43

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Solution

The fourth proportional to 653,207.08, 979,872.24 and 253,878.43 is: 380,841.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,207.08 : 979,872.24 = 253,878.43 : x
  2. Step 2: Convert to fraction form
    653,207.08/979,872.24 = 253,878.43/x
  3. Step 3: Cross multiply
    653,207.08x = 979,872.24 × 253,878.43
  4. Step 4: Simplify right side
    653,207.08x = 248,768,425,891.78
  5. Step 5: Solve for x
    x = 248,768,425,891.78/653,207.08
  6. Step 6: Final answer
    x = 380,841.59

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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.