Home / 1,370,855.96-1,891,801.24-789,758.50

Finding the Fourth Proportional to 1,370,855.96, 1,891,801.24 and 789,758.50

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Solution

The fourth proportional to 1,370,855.96, 1,891,801.24 and 789,758.50 is: 1,089,878.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,855.96 : 1,891,801.24 = 789,758.50 : x
  2. Step 2: Convert to fraction form
    1,370,855.96/1,891,801.24 = 789,758.50/x
  3. Step 3: Cross multiply
    1,370,855.96x = 1,891,801.24 × 789,758.50
  4. Step 4: Simplify right side
    1,370,855.96x = 1,494,066,109,600.54
  5. Step 5: Solve for x
    x = 1,494,066,109,600.54/1,370,855.96
  6. Step 6: Final answer
    x = 1,089,878.26

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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.