Home / 831,395.80-1,247,224.38-270,299.08

Finding the Fourth Proportional to 831,395.80, 1,247,224.38 and 270,299.08

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Solution

The fourth proportional to 831,395.80, 1,247,224.38 and 270,299.08 is: 405,491.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,395.80 : 1,247,224.38 = 270,299.08 : x
  2. Step 2: Convert to fraction form
    831,395.80/1,247,224.38 = 270,299.08/x
  3. Step 3: Cross multiply
    831,395.80x = 1,247,224.38 × 270,299.08
  4. Step 4: Simplify right side
    831,395.80x = 337,123,602,467.57
  5. Step 5: Solve for x
    x = 337,123,602,467.57/831,395.80
  6. Step 6: Final answer
    x = 405,491.11

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1.5x scale

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.