Home / 1,392,398.78-2,088,599.58-381,528.90

Finding the Fourth Proportional to 1,392,398.78, 2,088,599.58 and 381,528.90

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Solution

The fourth proportional to 1,392,398.78, 2,088,599.58 and 381,528.90 is: 572,293.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,398.78 : 2,088,599.58 = 381,528.90 : x
  2. Step 2: Convert to fraction form
    1,392,398.78/2,088,599.58 = 381,528.90/x
  3. Step 3: Cross multiply
    1,392,398.78x = 2,088,599.58 × 381,528.90
  4. Step 4: Simplify right side
    1,392,398.78x = 796,861,100,297.86
  5. Step 5: Solve for x
    x = 796,861,100,297.86/1,392,398.78
  6. Step 6: Final answer
    x = 572,293.74

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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.