Home / 831,866.98-1,147,977.20-449,893.77

Finding the Fourth Proportional to 831,866.98, 1,147,977.20 and 449,893.77

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Solution

The fourth proportional to 831,866.98, 1,147,977.20 and 449,893.77 is: 620,853.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,866.98 : 1,147,977.20 = 449,893.77 : x
  2. Step 2: Convert to fraction form
    831,866.98/1,147,977.20 = 449,893.77/x
  3. Step 3: Cross multiply
    831,866.98x = 1,147,977.20 × 449,893.77
  4. Step 4: Simplify right side
    831,866.98x = 516,467,790,382.04
  5. Step 5: Solve for x
    x = 516,467,790,382.04/831,866.98
  6. Step 6: Final answer
    x = 620,853.82

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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.