Home / 1,086,140.30-1,629,404.85-455,117.90

Finding the Fourth Proportional to 1,086,140.30, 1,629,404.85 and 455,117.90

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Solution

The fourth proportional to 1,086,140.30, 1,629,404.85 and 455,117.90 is: 682,758.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,140.30 : 1,629,404.85 = 455,117.90 : x
  2. Step 2: Convert to fraction form
    1,086,140.30/1,629,404.85 = 455,117.90/x
  3. Step 3: Cross multiply
    1,086,140.30x = 1,629,404.85 × 455,117.90
  4. Step 4: Simplify right side
    1,086,140.30x = 741,571,313,581.82
  5. Step 5: Solve for x
    x = 741,571,313,581.82/1,086,140.30
  6. Step 6: Final answer
    x = 682,758.31

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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.