Home / 1,401,261.18-1,933,746.35-789,421.28

Finding the Fourth Proportional to 1,401,261.18, 1,933,746.35 and 789,421.28

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Solution

The fourth proportional to 1,401,261.18, 1,933,746.35 and 789,421.28 is: 1,089,404.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,261.18 : 1,933,746.35 = 789,421.28 : x
  2. Step 2: Convert to fraction form
    1,401,261.18/1,933,746.35 = 789,421.28/x
  3. Step 3: Cross multiply
    1,401,261.18x = 1,933,746.35 × 789,421.28
  4. Step 4: Simplify right side
    1,401,261.18x = 1,526,540,505,196.49
  5. Step 5: Solve for x
    x = 1,526,540,505,196.49/1,401,261.18
  6. Step 6: Final answer
    x = 1,089,404.69

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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.