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Finding the Fourth Proportional to 580,099.76, 870,172.97 and 276,337.76

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Solution

The fourth proportional to 580,099.76, 870,172.97 and 276,337.76 is: 414,517.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,099.76 : 870,172.97 = 276,337.76 : x
  2. Step 2: Convert to fraction form
    580,099.76/870,172.97 = 276,337.76/x
  3. Step 3: Cross multiply
    580,099.76x = 870,172.97 × 276,337.76
  4. Step 4: Simplify right side
    580,099.76x = 240,461,647,960.66
  5. Step 5: Solve for x
    x = 240,461,647,960.66/580,099.76
  6. Step 6: Final answer
    x = 414,517.75

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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.