Home / 1,369,776.54-1,890,126-789,189.60

Finding the Fourth Proportional to 1,369,776.54, 1,890,126 and 789,189.60

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Solution

The fourth proportional to 1,369,776.54, 1,890,126 and 789,189.60 is: 1,088,986.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,776.54 : 1,890,126 = 789,189.60 : x
  2. Step 2: Convert to fraction form
    1,369,776.54/1,890,126 = 789,189.60/x
  3. Step 3: Cross multiply
    1,369,776.54x = 1,890,126 × 789,189.60
  4. Step 4: Simplify right side
    1,369,776.54x = 1,491,667,781,889.60
  5. Step 5: Solve for x
    x = 1,491,667,781,889.60/1,369,776.54
  6. Step 6: Final answer
    x = 1,088,986.22

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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.