Home / 681,975.70-1,022,963.55-416,255.20

Finding the Fourth Proportional to 681,975.70, 1,022,963.55 and 416,255.20

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Solution

The fourth proportional to 681,975.70, 1,022,963.55 and 416,255.20 is: 624,382.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,975.70 : 1,022,963.55 = 416,255.20 : x
  2. Step 2: Convert to fraction form
    681,975.70/1,022,963.55 = 416,255.20/x
  3. Step 3: Cross multiply
    681,975.70x = 1,022,963.55 × 416,255.20
  4. Step 4: Simplify right side
    681,975.70x = 425,813,897,097.96
  5. Step 5: Solve for x
    x = 425,813,897,097.96/681,975.70
  6. Step 6: Final answer
    x = 624,382.80

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1.5x scale

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.