Home / 683,939.60-1,025,812.20-210,672.80

Finding the Fourth Proportional to 683,939.60, 1,025,812.20 and 210,672.80

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Solution

The fourth proportional to 683,939.60, 1,025,812.20 and 210,672.80 is: 315,979.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,939.60 : 1,025,812.20 = 210,672.80 : x
  2. Step 2: Convert to fraction form
    683,939.60/1,025,812.20 = 210,672.80/x
  3. Step 3: Cross multiply
    683,939.60x = 1,025,812.20 × 210,672.80
  4. Step 4: Simplify right side
    683,939.60x = 216,110,728,448.16
  5. Step 5: Solve for x
    x = 216,110,728,448.16/683,939.60
  6. Step 6: Final answer
    x = 315,979.26

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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.