Home / 1,325,291.72-1,828,854.57-809,907.86

Finding the Fourth Proportional to 1,325,291.72, 1,828,854.57 and 809,907.86

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Solution

The fourth proportional to 1,325,291.72, 1,828,854.57 and 809,907.86 is: 1,117,643.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,291.72 : 1,828,854.57 = 809,907.86 : x
  2. Step 2: Convert to fraction form
    1,325,291.72/1,828,854.57 = 809,907.86/x
  3. Step 3: Cross multiply
    1,325,291.72x = 1,828,854.57 × 809,907.86
  4. Step 4: Simplify right side
    1,325,291.72x = 1,481,203,691,039.92
  5. Step 5: Solve for x
    x = 1,481,203,691,039.92/1,325,291.72
  6. Step 6: Final answer
    x = 1,117,643.51

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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.