Home / 855,474.03-1,180,816.92-493,140.06

Finding the Fourth Proportional to 855,474.03, 1,180,816.92 and 493,140.06

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Solution

The fourth proportional to 855,474.03, 1,180,816.92 and 493,140.06 is: 680,684.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,474.03 : 1,180,816.92 = 493,140.06 : x
  2. Step 2: Convert to fraction form
    855,474.03/1,180,816.92 = 493,140.06/x
  3. Step 3: Cross multiply
    855,474.03x = 1,180,816.92 × 493,140.06
  4. Step 4: Simplify right side
    855,474.03x = 582,308,126,777.82
  5. Step 5: Solve for x
    x = 582,308,126,777.82/855,474.03
  6. Step 6: Final answer
    x = 680,684.75

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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.