Home / 1,315,725.81-1,815,745.55-806,329.77

Finding the Fourth Proportional to 1,315,725.81, 1,815,745.55 and 806,329.77

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Solution

The fourth proportional to 1,315,725.81, 1,815,745.55 and 806,329.77 is: 1,112,762.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,725.81 : 1,815,745.55 = 806,329.77 : x
  2. Step 2: Convert to fraction form
    1,315,725.81/1,815,745.55 = 806,329.77/x
  3. Step 3: Cross multiply
    1,315,725.81x = 1,815,745.55 × 806,329.77
  4. Step 4: Simplify right side
    1,315,725.81x = 1,464,089,691,710.02
  5. Step 5: Solve for x
    x = 1,464,089,691,710.02/1,315,725.81
  6. Step 6: Final answer
    x = 1,112,762.01

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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.