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Finding the Fourth Proportional to 580,469.19, 870,773.02 and 280,734.39

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Solution

The fourth proportional to 580,469.19, 870,773.02 and 280,734.39 is: 421,135.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,469.19 : 870,773.02 = 280,734.39 : x
  2. Step 2: Convert to fraction form
    580,469.19/870,773.02 = 280,734.39/x
  3. Step 3: Cross multiply
    580,469.19x = 870,773.02 × 280,734.39
  4. Step 4: Simplify right side
    580,469.19x = 244,455,926,840.62
  5. Step 5: Solve for x
    x = 244,455,926,840.62/580,469.19
  6. Step 6: Final answer
    x = 421,135.06

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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.