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Finding the Fourth Proportional to 536,355.27, 739,860.82 and 321,370.76

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Solution

The fourth proportional to 536,355.27, 739,860.82 and 321,370.76 is: 443,306.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,355.27 : 739,860.82 = 321,370.76 : x
  2. Step 2: Convert to fraction form
    536,355.27/739,860.82 = 321,370.76/x
  3. Step 3: Cross multiply
    536,355.27x = 739,860.82 × 321,370.76
  4. Step 4: Simplify right side
    536,355.27x = 237,769,635,063.85
  5. Step 5: Solve for x
    x = 237,769,635,063.85/536,355.27
  6. Step 6: Final answer
    x = 443,306.23

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1.5x scale

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.