Home / 680,253.76-1,020,027.60-200,419.28

Finding the Fourth Proportional to 680,253.76, 1,020,027.60 and 200,419.28

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Solution

The fourth proportional to 680,253.76, 1,020,027.60 and 200,419.28 is: 300,524.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,253.76 : 1,020,027.60 = 200,419.28 : x
  2. Step 2: Convert to fraction form
    680,253.76/1,020,027.60 = 200,419.28/x
  3. Step 3: Cross multiply
    680,253.76x = 1,020,027.60 × 200,419.28
  4. Step 4: Simplify right side
    680,253.76x = 204,433,197,172.13
  5. Step 5: Solve for x
    x = 204,433,197,172.13/680,253.76
  6. Step 6: Final answer
    x = 300,524.91

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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.