Home / 855,470.35-1,180,812.09-493,136.56

Finding the Fourth Proportional to 855,470.35, 1,180,812.09 and 493,136.56

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Solution

The fourth proportional to 855,470.35, 1,180,812.09 and 493,136.56 is: 680,680.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,470.35 : 1,180,812.09 = 493,136.56 : x
  2. Step 2: Convert to fraction form
    855,470.35/1,180,812.09 = 493,136.56/x
  3. Step 3: Cross multiply
    855,470.35x = 1,180,812.09 × 493,136.56
  4. Step 4: Simplify right side
    855,470.35x = 582,301,612,069.01
  5. Step 5: Solve for x
    x = 582,301,612,069.01/855,470.35
  6. Step 6: Final answer
    x = 680,680.06

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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.