Home / 831,309.56-1,147,206.50-449,336.34

Finding the Fourth Proportional to 831,309.56, 1,147,206.50 and 449,336.34

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Solution

The fourth proportional to 831,309.56, 1,147,206.50 and 449,336.34 is: 620,083.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,309.56 : 1,147,206.50 = 449,336.34 : x
  2. Step 2: Convert to fraction form
    831,309.56/1,147,206.50 = 449,336.34/x
  3. Step 3: Cross multiply
    831,309.56x = 1,147,206.50 × 449,336.34
  4. Step 4: Simplify right side
    831,309.56x = 515,481,569,934.21
  5. Step 5: Solve for x
    x = 515,481,569,934.21/831,309.56
  6. Step 6: Final answer
    x = 620,083.77

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1.5x scale

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.