Home / 1,433,783.88-1,978,606.14-789,190.20

Finding the Fourth Proportional to 1,433,783.88, 1,978,606.14 and 789,190.20

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Solution

The fourth proportional to 1,433,783.88, 1,978,606.14 and 789,190.20 is: 1,089,073.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,783.88 : 1,978,606.14 = 789,190.20 : x
  2. Step 2: Convert to fraction form
    1,433,783.88/1,978,606.14 = 789,190.20/x
  3. Step 3: Cross multiply
    1,433,783.88x = 1,978,606.14 × 789,190.20
  4. Step 4: Simplify right side
    1,433,783.88x = 1,561,496,575,347.83
  5. Step 5: Solve for x
    x = 1,561,496,575,347.83/1,433,783.88
  6. Step 6: Final answer
    x = 1,089,073.88

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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.