Home / 1,320,900.76-1,981,369.36-374,270.57

Finding the Fourth Proportional to 1,320,900.76, 1,981,369.36 and 374,270.57

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Solution

The fourth proportional to 1,320,900.76, 1,981,369.36 and 374,270.57 is: 561,411.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,900.76 : 1,981,369.36 = 374,270.57 : x
  2. Step 2: Convert to fraction form
    1,320,900.76/1,981,369.36 = 374,270.57/x
  3. Step 3: Cross multiply
    1,320,900.76x = 1,981,369.36 × 374,270.57
  4. Step 4: Simplify right side
    1,320,900.76x = 741,568,228,905.21
  5. Step 5: Solve for x
    x = 741,568,228,905.21/1,320,900.76
  6. Step 6: Final answer
    x = 561,411.01

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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.