Home / 831,728.94-1,147,785.96-449,755.74

Finding the Fourth Proportional to 831,728.94, 1,147,785.96 and 449,755.74

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Solution

The fourth proportional to 831,728.94, 1,147,785.96 and 449,755.74 is: 620,662.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,728.94 : 1,147,785.96 = 449,755.74 : x
  2. Step 2: Convert to fraction form
    831,728.94/1,147,785.96 = 449,755.74/x
  3. Step 3: Cross multiply
    831,728.94x = 1,147,785.96 × 449,755.74
  4. Step 4: Simplify right side
    831,728.94x = 516,223,323,801.41
  5. Step 5: Solve for x
    x = 516,223,323,801.41/831,728.94
  6. Step 6: Final answer
    x = 620,662.93

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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.