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Finding the Fourth Proportional to 576,310.42, 865,074.34 and 323,806.70

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Solution

The fourth proportional to 576,310.42, 865,074.34 and 323,806.70 is: 486,052.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,310.42 : 865,074.34 = 323,806.70 : x
  2. Step 2: Convert to fraction form
    576,310.42/865,074.34 = 323,806.70/x
  3. Step 3: Cross multiply
    576,310.42x = 865,074.34 × 323,806.70
  4. Step 4: Simplify right side
    576,310.42x = 280,116,867,290.08
  5. Step 5: Solve for x
    x = 280,116,867,290.08/576,310.42
  6. Step 6: Final answer
    x = 486,052.06

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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.