Home / 1,320,588.50-1,981,558.32-628,938.50

Finding the Fourth Proportional to 1,320,588.50, 1,981,558.32 and 628,938.50

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Solution

The fourth proportional to 1,320,588.50, 1,981,558.32 and 628,938.50 is: 943,729.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,588.50 : 1,981,558.32 = 628,938.50 : x
  2. Step 2: Convert to fraction form
    1,320,588.50/1,981,558.32 = 628,938.50/x
  3. Step 3: Cross multiply
    1,320,588.50x = 1,981,558.32 × 628,938.50
  4. Step 4: Simplify right side
    1,320,588.50x = 1,246,278,317,443.32
  5. Step 5: Solve for x
    x = 1,246,278,317,443.32/1,320,588.50
  6. Step 6: Final answer
    x = 943,729.49

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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.