Home / 831,358.17-1,147,273.76-449,384.96

Finding the Fourth Proportional to 831,358.17, 1,147,273.76 and 449,384.96

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Solution

The fourth proportional to 831,358.17, 1,147,273.76 and 449,384.96 is: 620,150.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,358.17 : 1,147,273.76 = 449,384.96 : x
  2. Step 2: Convert to fraction form
    831,358.17/1,147,273.76 = 449,384.96/x
  3. Step 3: Cross multiply
    831,358.17x = 1,147,273.76 × 449,384.96
  4. Step 4: Simplify right side
    831,358.17x = 515,567,568,133.74
  5. Step 5: Solve for x
    x = 515,567,568,133.74/831,358.17
  6. Step 6: Final answer
    x = 620,150.96

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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.