Home / 1,051,620.39-1,449,535.95-821,778.21

Finding the Fourth Proportional to 1,051,620.39, 1,449,535.95 and 821,778.21

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Solution

The fourth proportional to 1,051,620.39, 1,449,535.95 and 821,778.21 is: 1,132,725.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,620.39 : 1,449,535.95 = 821,778.21 : x
  2. Step 2: Convert to fraction form
    1,051,620.39/1,449,535.95 = 821,778.21/x
  3. Step 3: Cross multiply
    1,051,620.39x = 1,449,535.95 × 821,778.21
  4. Step 4: Simplify right side
    1,051,620.39x = 1,191,197,058,321.65
  5. Step 5: Solve for x
    x = 1,191,197,058,321.65/1,051,620.39
  6. Step 6: Final answer
    x = 1,132,725.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.