Home / 831,504.82-1,147,476.36-449,531.50

Finding the Fourth Proportional to 831,504.82, 1,147,476.36 and 449,531.50

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Solution

The fourth proportional to 831,504.82, 1,147,476.36 and 449,531.50 is: 620,353.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,504.82 : 1,147,476.36 = 449,531.50 : x
  2. Step 2: Convert to fraction form
    831,504.82/1,147,476.36 = 449,531.50/x
  3. Step 3: Cross multiply
    831,504.82x = 1,147,476.36 × 449,531.50
  4. Step 4: Simplify right side
    831,504.82x = 515,826,769,325.34
  5. Step 5: Solve for x
    x = 515,826,769,325.34/831,504.82
  6. Step 6: Final answer
    x = 620,353.31

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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.