Home / 666,665.23-1,000,222.30-211,330.84

Finding the Fourth Proportional to 666,665.23, 1,000,222.30 and 211,330.84

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Solution

The fourth proportional to 666,665.23, 1,000,222.30 and 211,330.84 is: 317,067.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,665.23 : 1,000,222.30 = 211,330.84 : x
  2. Step 2: Convert to fraction form
    666,665.23/1,000,222.30 = 211,330.84/x
  3. Step 3: Cross multiply
    666,665.23x = 1,000,222.30 × 211,330.84
  4. Step 4: Simplify right side
    666,665.23x = 211,377,814,757.28
  5. Step 5: Solve for x
    x = 211,377,814,757.28/666,665.23
  6. Step 6: Final answer
    x = 317,067.41

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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.