Home / 1,419,640-2,128,410.24-858,549.76

Finding the Fourth Proportional to 1,419,640, 2,128,410.24 and 858,549.76

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Solution

The fourth proportional to 1,419,640, 2,128,410.24 and 858,549.76 is: 1,287,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,640 : 2,128,410.24 = 858,549.76 : x
  2. Step 2: Convert to fraction form
    1,419,640/2,128,410.24 = 858,549.76/x
  3. Step 3: Cross multiply
    1,419,640x = 2,128,410.24 × 858,549.76
  4. Step 4: Simplify right side
    1,419,640x = 1,827,346,100,733.54
  5. Step 5: Solve for x
    x = 1,827,346,100,733.54/1,419,640
  6. Step 6: Final answer
    x = 1,287,189.78

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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.