Home / 831,491.72-1,247,226.64-200,400.06

Finding the Fourth Proportional to 831,491.72, 1,247,226.64 and 200,400.06

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Solution

The fourth proportional to 831,491.72, 1,247,226.64 and 200,400.06 is: 300,597.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,491.72 : 1,247,226.64 = 200,400.06 : x
  2. Step 2: Convert to fraction form
    831,491.72/1,247,226.64 = 200,400.06/x
  3. Step 3: Cross multiply
    831,491.72x = 1,247,226.64 × 200,400.06
  4. Step 4: Simplify right side
    831,491.72x = 249,944,293,489.60
  5. Step 5: Solve for x
    x = 249,944,293,489.60/831,491.72
  6. Step 6: Final answer
    x = 300,597.45

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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.