Home / 1,315,725.94-1,815,745.72-806,329.90

Finding the Fourth Proportional to 1,315,725.94, 1,815,745.72 and 806,329.90

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Solution

The fourth proportional to 1,315,725.94, 1,815,745.72 and 806,329.90 is: 1,112,762.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,725.94 : 1,815,745.72 = 806,329.90 : x
  2. Step 2: Convert to fraction form
    1,315,725.94/1,815,745.72 = 806,329.90/x
  3. Step 3: Cross multiply
    1,315,725.94x = 1,815,745.72 × 806,329.90
  4. Step 4: Simplify right side
    1,315,725.94x = 1,464,090,055,754.30
  5. Step 5: Solve for x
    x = 1,464,090,055,754.30/1,315,725.94
  6. Step 6: Final answer
    x = 1,112,762.18

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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.