Home / 1,389,236.78-2,082,657.38-536,906.49

Finding the Fourth Proportional to 1,389,236.78, 2,082,657.38 and 536,906.49

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Solution

The fourth proportional to 1,389,236.78, 2,082,657.38 and 536,906.49 is: 804,896.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,236.78 : 2,082,657.38 = 536,906.49 : x
  2. Step 2: Convert to fraction form
    1,389,236.78/2,082,657.38 = 536,906.49/x
  3. Step 3: Cross multiply
    1,389,236.78x = 2,082,657.38 × 536,906.49
  4. Step 4: Simplify right side
    1,389,236.78x = 1,118,192,261,083.86
  5. Step 5: Solve for x
    x = 1,118,192,261,083.86/1,389,236.78
  6. Step 6: Final answer
    x = 804,896.82

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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.