Home / 831,503.82-1,147,474.98-449,530.50

Finding the Fourth Proportional to 831,503.82, 1,147,474.98 and 449,530.50

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Solution

The fourth proportional to 831,503.82, 1,147,474.98 and 449,530.50 is: 620,351.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,503.82 : 1,147,474.98 = 449,530.50 : x
  2. Step 2: Convert to fraction form
    831,503.82/1,147,474.98 = 449,530.50/x
  3. Step 3: Cross multiply
    831,503.82x = 1,147,474.98 × 449,530.50
  4. Step 4: Simplify right side
    831,503.82x = 515,825,001,496.89
  5. Step 5: Solve for x
    x = 515,825,001,496.89/831,503.82
  6. Step 6: Final answer
    x = 620,351.93

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1.5x scale

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.