Home / 831,877.47-1,147,990.90-449,904.25

Finding the Fourth Proportional to 831,877.47, 1,147,990.90 and 449,904.25

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Solution

The fourth proportional to 831,877.47, 1,147,990.90 and 449,904.25 is: 620,867.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,877.47 : 1,147,990.90 = 449,904.25 : x
  2. Step 2: Convert to fraction form
    831,877.47/1,147,990.90 = 449,904.25/x
  3. Step 3: Cross multiply
    831,877.47x = 1,147,990.90 × 449,904.25
  4. Step 4: Simplify right side
    831,877.47x = 516,485,979,131.37
  5. Step 5: Solve for x
    x = 516,485,979,131.37/831,877.47
  6. Step 6: Final answer
    x = 620,867.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.