Home / 831,530.36-1,147,511.99-449,557.04

Finding the Fourth Proportional to 831,530.36, 1,147,511.99 and 449,557.04

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Solution

The fourth proportional to 831,530.36, 1,147,511.99 and 449,557.04 is: 620,388.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,530.36 : 1,147,511.99 = 449,557.04 : x
  2. Step 2: Convert to fraction form
    831,530.36/1,147,511.99 = 449,557.04/x
  3. Step 3: Cross multiply
    831,530.36x = 1,147,511.99 × 449,557.04
  4. Step 4: Simplify right side
    831,530.36x = 515,872,093,588.91
  5. Step 5: Solve for x
    x = 515,872,093,588.91/831,530.36
  6. Step 6: Final answer
    x = 620,388.77

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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.