Home / 987,986.74-1,362,669.41-850,399.84

Finding the Fourth Proportional to 987,986.74, 1,362,669.41 and 850,399.84

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Solution

The fourth proportional to 987,986.74, 1,362,669.41 and 850,399.84 is: 1,172,904.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,986.74 : 1,362,669.41 = 850,399.84 : x
  2. Step 2: Convert to fraction form
    987,986.74/1,362,669.41 = 850,399.84/x
  3. Step 3: Cross multiply
    987,986.74x = 1,362,669.41 × 850,399.84
  4. Step 4: Simplify right side
    987,986.74x = 1,158,813,846,956.22
  5. Step 5: Solve for x
    x = 1,158,813,846,956.22/987,986.74
  6. Step 6: Final answer
    x = 1,172,904.25

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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.