Home / 1,392,254.92-2,088,384.17-381,385.76

Finding the Fourth Proportional to 1,392,254.92, 2,088,384.17 and 381,385.76

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Solution

The fourth proportional to 1,392,254.92, 2,088,384.17 and 381,385.76 is: 572,079.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,254.92 : 2,088,384.17 = 381,385.76 : x
  2. Step 2: Convert to fraction form
    1,392,254.92/2,088,384.17 = 381,385.76/x
  3. Step 3: Cross multiply
    1,392,254.92x = 2,088,384.17 × 381,385.76
  4. Step 4: Simplify right side
    1,392,254.92x = 796,479,981,940.49
  5. Step 5: Solve for x
    x = 796,479,981,940.49/1,392,254.92
  6. Step 6: Final answer
    x = 572,079.13

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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.