Home / 831,270.05-1,247,372.19-452,217.30

Finding the Fourth Proportional to 831,270.05, 1,247,372.19 and 452,217.30

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Solution

The fourth proportional to 831,270.05, 1,247,372.19 and 452,217.30 is: 678,580.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,270.05 : 1,247,372.19 = 452,217.30 : x
  2. Step 2: Convert to fraction form
    831,270.05/1,247,372.19 = 452,217.30/x
  3. Step 3: Cross multiply
    831,270.05x = 1,247,372.19 × 452,217.30
  4. Step 4: Simplify right side
    831,270.05x = 564,083,283,856.89
  5. Step 5: Solve for x
    x = 564,083,283,856.89/831,270.05
  6. Step 6: Final answer
    x = 678,580.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.