Home / 831,668.67-1,247,314.77-381,957.21

Finding the Fourth Proportional to 831,668.67, 1,247,314.77 and 381,957.21

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Solution

The fourth proportional to 831,668.67, 1,247,314.77 and 381,957.21 is: 572,849.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,668.67 : 1,247,314.77 = 381,957.21 : x
  2. Step 2: Convert to fraction form
    831,668.67/1,247,314.77 = 381,957.21/x
  3. Step 3: Cross multiply
    831,668.67x = 1,247,314.77 × 381,957.21
  4. Step 4: Simplify right side
    831,668.67x = 476,420,869,540.99
  5. Step 5: Solve for x
    x = 476,420,869,540.99/831,668.67
  6. Step 6: Final answer
    x = 572,849.37

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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.