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Finding the Fourth Proportional to 442,765.72, 611,063.82 and 270,784.30

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Solution

The fourth proportional to 442,765.72, 611,063.82 and 270,784.30 is: 373,711.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,765.72 : 611,063.82 = 270,784.30 : x
  2. Step 2: Convert to fraction form
    442,765.72/611,063.82 = 270,784.30/x
  3. Step 3: Cross multiply
    442,765.72x = 611,063.82 × 270,784.30
  4. Step 4: Simplify right side
    442,765.72x = 165,466,488,754.03
  5. Step 5: Solve for x
    x = 165,466,488,754.03/442,765.72
  6. Step 6: Final answer
    x = 373,711.16

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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.