Home / 938,847.51-1,407,917.70-339,660.54

Finding the Fourth Proportional to 938,847.51, 1,407,917.70 and 339,660.54

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Solution

The fourth proportional to 938,847.51, 1,407,917.70 and 339,660.54 is: 509,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,847.51 : 1,407,917.70 = 339,660.54 : x
  2. Step 2: Convert to fraction form
    938,847.51/1,407,917.70 = 339,660.54/x
  3. Step 3: Cross multiply
    938,847.51x = 1,407,917.70 × 339,660.54
  4. Step 4: Simplify right side
    938,847.51x = 478,214,086,257.56
  5. Step 5: Solve for x
    x = 478,214,086,257.56/938,847.51
  6. Step 6: Final answer
    x = 509,362.90

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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.