Home / 855,514.49-1,180,872.81-493,180.56

Finding the Fourth Proportional to 855,514.49, 1,180,872.81 and 493,180.56

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Solution

The fourth proportional to 855,514.49, 1,180,872.81 and 493,180.56 is: 680,740.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,514.49 : 1,180,872.81 = 493,180.56 : x
  2. Step 2: Convert to fraction form
    855,514.49/1,180,872.81 = 493,180.56/x
  3. Step 3: Cross multiply
    855,514.49x = 1,180,872.81 × 493,180.56
  4. Step 4: Simplify right side
    855,514.49x = 582,383,513,724.57
  5. Step 5: Solve for x
    x = 582,383,513,724.57/855,514.49
  6. Step 6: Final answer
    x = 680,740.68

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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.