Home / 667,278.76-1,000,919.76-161,837.68

Finding the Fourth Proportional to 667,278.76, 1,000,919.76 and 161,837.68

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Solution

The fourth proportional to 667,278.76, 1,000,919.76 and 161,837.68 is: 242,756.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,278.76 : 1,000,919.76 = 161,837.68 : x
  2. Step 2: Convert to fraction form
    667,278.76/1,000,919.76 = 161,837.68/x
  3. Step 3: Cross multiply
    667,278.76x = 1,000,919.76 × 161,837.68
  4. Step 4: Simplify right side
    667,278.76x = 161,986,531,824.56
  5. Step 5: Solve for x
    x = 161,986,531,824.56/667,278.76
  6. Step 6: Final answer
    x = 242,756.91

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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.