Home / 831,876.17-1,147,989.11-449,902.95

Finding the Fourth Proportional to 831,876.17, 1,147,989.11 and 449,902.95

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Solution

The fourth proportional to 831,876.17, 1,147,989.11 and 449,902.95 is: 620,866.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,876.17 : 1,147,989.11 = 449,902.95 : x
  2. Step 2: Convert to fraction form
    831,876.17/1,147,989.11 = 449,902.95/x
  3. Step 3: Cross multiply
    831,876.17x = 1,147,989.11 × 449,902.95
  4. Step 4: Simplify right side
    831,876.17x = 516,483,683,724.52
  5. Step 5: Solve for x
    x = 516,483,683,724.52/831,876.17
  6. Step 6: Final answer
    x = 620,866.07

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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.