Home / 1,322,128.32-1,983,175.20-324,864.96

Finding the Fourth Proportional to 1,322,128.32, 1,983,175.20 and 324,864.96

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Solution

The fourth proportional to 1,322,128.32, 1,983,175.20 and 324,864.96 is: 487,293.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,128.32 : 1,983,175.20 = 324,864.96 : x
  2. Step 2: Convert to fraction form
    1,322,128.32/1,983,175.20 = 324,864.96/x
  3. Step 3: Cross multiply
    1,322,128.32x = 1,983,175.20 × 324,864.96
  4. Step 4: Simplify right side
    1,322,128.32x = 644,264,132,020.99
  5. Step 5: Solve for x
    x = 644,264,132,020.99/1,322,128.32
  6. Step 6: Final answer
    x = 487,293.19

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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.