Home / 667,297.80-1,000,471.23-312,118.20

Finding the Fourth Proportional to 667,297.80, 1,000,471.23 and 312,118.20

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Solution

The fourth proportional to 667,297.80, 1,000,471.23 and 312,118.20 is: 467,954.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,297.80 : 1,000,471.23 = 312,118.20 : x
  2. Step 2: Convert to fraction form
    667,297.80/1,000,471.23 = 312,118.20/x
  3. Step 3: Cross multiply
    667,297.80x = 1,000,471.23 × 312,118.20
  4. Step 4: Simplify right side
    667,297.80x = 312,265,279,459.39
  5. Step 5: Solve for x
    x = 312,265,279,459.39/667,297.80
  6. Step 6: Final answer
    x = 467,954.91

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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.