Home / 1,370,430.03-1,891,396.12-789,542.56

Finding the Fourth Proportional to 1,370,430.03, 1,891,396.12 and 789,542.56

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Solution

The fourth proportional to 1,370,430.03, 1,891,396.12 and 789,542.56 is: 1,089,685.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,430.03 : 1,891,396.12 = 789,542.56 : x
  2. Step 2: Convert to fraction form
    1,370,430.03/1,891,396.12 = 789,542.56/x
  3. Step 3: Cross multiply
    1,370,430.03x = 1,891,396.12 × 789,542.56
  4. Step 4: Simplify right side
    1,370,430.03x = 1,493,337,725,101.89
  5. Step 5: Solve for x
    x = 1,493,337,725,101.89/1,370,430.03
  6. Step 6: Final answer
    x = 1,089,685.49

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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.