Home / 817,586.87-1,226,385.77-285,105.83

Finding the Fourth Proportional to 817,586.87, 1,226,385.77 and 285,105.83

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Solution

The fourth proportional to 817,586.87, 1,226,385.77 and 285,105.83 is: 427,660.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,586.87 : 1,226,385.77 = 285,105.83 : x
  2. Step 2: Convert to fraction form
    817,586.87/1,226,385.77 = 285,105.83/x
  3. Step 3: Cross multiply
    817,586.87x = 1,226,385.77 × 285,105.83
  4. Step 4: Simplify right side
    817,586.87x = 349,649,725,298.58
  5. Step 5: Solve for x
    x = 349,649,725,298.58/817,586.87
  6. Step 6: Final answer
    x = 427,660.64

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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.