Home / 831,768.75-1,147,841.28-449,795.43

Finding the Fourth Proportional to 831,768.75, 1,147,841.28 and 449,795.43

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Solution

The fourth proportional to 831,768.75, 1,147,841.28 and 449,795.43 is: 620,717.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,768.75 : 1,147,841.28 = 449,795.43 : x
  2. Step 2: Convert to fraction form
    831,768.75/1,147,841.28 = 449,795.43/x
  3. Step 3: Cross multiply
    831,768.75x = 1,147,841.28 × 449,795.43
  4. Step 4: Simplify right side
    831,768.75x = 516,293,762,109.35
  5. Step 5: Solve for x
    x = 516,293,762,109.35/831,768.75
  6. Step 6: Final answer
    x = 620,717.91

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Double scale
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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.