Home / 831,866.31-1,147,976.27-449,893.08

Finding the Fourth Proportional to 831,866.31, 1,147,976.27 and 449,893.08

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Solution

The fourth proportional to 831,866.31, 1,147,976.27 and 449,893.08 is: 620,852.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,866.31 : 1,147,976.27 = 449,893.08 : x
  2. Step 2: Convert to fraction form
    831,866.31/1,147,976.27 = 449,893.08/x
  3. Step 3: Cross multiply
    831,866.31x = 1,147,976.27 × 449,893.08
  4. Step 4: Simplify right side
    831,866.31x = 516,466,579,877.21
  5. Step 5: Solve for x
    x = 516,466,579,877.21/831,866.31
  6. Step 6: Final answer
    x = 620,852.86

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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.