Home / 831,570.03-1,247,344.11-200,478.78

Finding the Fourth Proportional to 831,570.03, 1,247,344.11 and 200,478.78

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Solution

The fourth proportional to 831,570.03, 1,247,344.11 and 200,478.78 is: 300,715.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,570.03 : 1,247,344.11 = 200,478.78 : x
  2. Step 2: Convert to fraction form
    831,570.03/1,247,344.11 = 200,478.78/x
  3. Step 3: Cross multiply
    831,570.03x = 1,247,344.11 × 200,478.78
  4. Step 4: Simplify right side
    831,570.03x = 250,066,025,412.99
  5. Step 5: Solve for x
    x = 250,066,025,412.99/831,570.03
  6. Step 6: Final answer
    x = 300,715.53

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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.