Home / 831,621.78-1,247,421.74-200,530.13

Finding the Fourth Proportional to 831,621.78, 1,247,421.74 and 200,530.13

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Solution

The fourth proportional to 831,621.78, 1,247,421.74 and 200,530.13 is: 300,792.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,621.78 : 1,247,421.74 = 200,530.13 : x
  2. Step 2: Convert to fraction form
    831,621.78/1,247,421.74 = 200,530.13/x
  3. Step 3: Cross multiply
    831,621.78x = 1,247,421.74 × 200,530.13
  4. Step 4: Simplify right side
    831,621.78x = 250,145,636,447.27
  5. Step 5: Solve for x
    x = 250,145,636,447.27/831,621.78
  6. Step 6: Final answer
    x = 300,792.55

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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.