Home / 831,877.82-1,147,991.39-449,904.60

Finding the Fourth Proportional to 831,877.82, 1,147,991.39 and 449,904.60

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Solution

The fourth proportional to 831,877.82, 1,147,991.39 and 449,904.60 is: 620,868.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,877.82 : 1,147,991.39 = 449,904.60 : x
  2. Step 2: Convert to fraction form
    831,877.82/1,147,991.39 = 449,904.60/x
  3. Step 3: Cross multiply
    831,877.82x = 1,147,991.39 × 449,904.60
  4. Step 4: Simplify right side
    831,877.82x = 516,486,607,121.39
  5. Step 5: Solve for x
    x = 516,486,607,121.39/831,877.82
  6. Step 6: Final answer
    x = 620,868.35

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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.