Home / 1,271,105-1,906,656.90-324,475.42

Finding the Fourth Proportional to 1,271,105, 1,906,656.90 and 324,475.42

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Solution

The fourth proportional to 1,271,105, 1,906,656.90 and 324,475.42 is: 486,712.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,105 : 1,906,656.90 = 324,475.42 : x
  2. Step 2: Convert to fraction form
    1,271,105/1,906,656.90 = 324,475.42/x
  3. Step 3: Cross multiply
    1,271,105x = 1,906,656.90 × 324,475.42
  4. Step 4: Simplify right side
    1,271,105x = 618,663,298,423.40
  5. Step 5: Solve for x
    x = 618,663,298,423.40/1,271,105
  6. Step 6: Final answer
    x = 486,712.98

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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.