Home / 855,751.76-1,181,061.78-493,105.04

Finding the Fourth Proportional to 855,751.76, 1,181,061.78 and 493,105.04

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Solution

The fourth proportional to 855,751.76, 1,181,061.78 and 493,105.04 is: 680,556.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,751.76 : 1,181,061.78 = 493,105.04 : x
  2. Step 2: Convert to fraction form
    855,751.76/1,181,061.78 = 493,105.04/x
  3. Step 3: Cross multiply
    855,751.76x = 1,181,061.78 × 493,105.04
  4. Step 4: Simplify right side
    855,751.76x = 582,387,516,269.37
  5. Step 5: Solve for x
    x = 582,387,516,269.37/855,751.76
  6. Step 6: Final answer
    x = 680,556.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.