Home / 684,257.20-1,026,088.78-263,237.56

Finding the Fourth Proportional to 684,257.20, 1,026,088.78 and 263,237.56

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Solution

The fourth proportional to 684,257.20, 1,026,088.78 and 263,237.56 is: 394,742.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,257.20 : 1,026,088.78 = 263,237.56 : x
  2. Step 2: Convert to fraction form
    684,257.20/1,026,088.78 = 263,237.56/x
  3. Step 3: Cross multiply
    684,257.20x = 1,026,088.78 × 263,237.56
  4. Step 4: Simplify right side
    684,257.20x = 270,105,106,790.58
  5. Step 5: Solve for x
    x = 270,105,106,790.58/684,257.20
  6. Step 6: Final answer
    x = 394,742.07

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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.