Home / 1,370,648.86-1,891,693.37-789,760.77

Finding the Fourth Proportional to 1,370,648.86, 1,891,693.37 and 789,760.77

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Solution

The fourth proportional to 1,370,648.86, 1,891,693.37 and 789,760.77 is: 1,089,983.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,648.86 : 1,891,693.37 = 789,760.77 : x
  2. Step 2: Convert to fraction form
    1,370,648.86/1,891,693.37 = 789,760.77/x
  3. Step 3: Cross multiply
    1,370,648.86x = 1,891,693.37 × 789,760.77
  4. Step 4: Simplify right side
    1,370,648.86x = 1,493,985,213,872.51
  5. Step 5: Solve for x
    x = 1,493,985,213,872.51/1,370,648.86
  6. Step 6: Final answer
    x = 1,089,983.92

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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.