Home / 831,827.09-1,147,924.83-449,853.87

Finding the Fourth Proportional to 831,827.09, 1,147,924.83 and 449,853.87

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Solution

The fourth proportional to 831,827.09, 1,147,924.83 and 449,853.87 is: 620,800.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,827.09 : 1,147,924.83 = 449,853.87 : x
  2. Step 2: Convert to fraction form
    831,827.09/1,147,924.83 = 449,853.87/x
  3. Step 3: Cross multiply
    831,827.09x = 1,147,924.83 × 449,853.87
  4. Step 4: Simplify right side
    831,827.09x = 516,398,427,244.59
  5. Step 5: Solve for x
    x = 516,398,427,244.59/831,827.09
  6. Step 6: Final answer
    x = 620,800.21

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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.