Home / 1,392,272.64-2,088,410.78-381,403.58

Finding the Fourth Proportional to 1,392,272.64, 2,088,410.78 and 381,403.58

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Solution

The fourth proportional to 1,392,272.64, 2,088,410.78 and 381,403.58 is: 572,105.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,272.64 : 2,088,410.78 = 381,403.58 : x
  2. Step 2: Convert to fraction form
    1,392,272.64/2,088,410.78 = 381,403.58/x
  3. Step 3: Cross multiply
    1,392,272.64x = 2,088,410.78 × 381,403.58
  4. Step 4: Simplify right side
    1,392,272.64x = 796,527,338,514.05
  5. Step 5: Solve for x
    x = 796,527,338,514.05/1,392,272.64
  6. Step 6: Final answer
    x = 572,105.86

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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.