Home / 831,749.30-1,247,612.43-200,657.78

Finding the Fourth Proportional to 831,749.30, 1,247,612.43 and 200,657.78

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Solution

The fourth proportional to 831,749.30, 1,247,612.43 and 200,657.78 is: 300,983.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,749.30 : 1,247,612.43 = 200,657.78 : x
  2. Step 2: Convert to fraction form
    831,749.30/1,247,612.43 = 200,657.78/x
  3. Step 3: Cross multiply
    831,749.30x = 1,247,612.43 × 200,657.78
  4. Step 4: Simplify right side
    831,749.30x = 250,343,140,504.21
  5. Step 5: Solve for x
    x = 250,343,140,504.21/831,749.30
  6. Step 6: Final answer
    x = 300,983.89

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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.