Home / 831,490.72-1,247,225.14-200,399.06

Finding the Fourth Proportional to 831,490.72, 1,247,225.14 and 200,399.06

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Solution

The fourth proportional to 831,490.72, 1,247,225.14 and 200,399.06 is: 300,595.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,490.72 : 1,247,225.14 = 200,399.06 : x
  2. Step 2: Convert to fraction form
    831,490.72/1,247,225.14 = 200,399.06/x
  3. Step 3: Cross multiply
    831,490.72x = 1,247,225.14 × 200,399.06
  4. Step 4: Simplify right side
    831,490.72x = 249,942,749,032.93
  5. Step 5: Solve for x
    x = 249,942,749,032.93/831,490.72
  6. Step 6: Final answer
    x = 300,595.96

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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.