Home / 831,358.23-1,147,274.70-449,385.02

Finding the Fourth Proportional to 831,358.23, 1,147,274.70 and 449,385.02

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Solution

The fourth proportional to 831,358.23, 1,147,274.70 and 449,385.02 is: 620,151.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,358.23 : 1,147,274.70 = 449,385.02 : x
  2. Step 2: Convert to fraction form
    831,358.23/1,147,274.70 = 449,385.02/x
  3. Step 3: Cross multiply
    831,358.23x = 1,147,274.70 × 449,385.02
  4. Step 4: Simplify right side
    831,358.23x = 515,568,058,268.62
  5. Step 5: Solve for x
    x = 515,568,058,268.62/831,358.23
  6. Step 6: Final answer
    x = 620,151.51

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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.