Home / 1,433,880.72-1,978,811.82-789,360.89

Finding the Fourth Proportional to 1,433,880.72, 1,978,811.82 and 789,360.89

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Solution

The fourth proportional to 1,433,880.72, 1,978,811.82 and 789,360.89 is: 1,089,349.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,880.72 : 1,978,811.82 = 789,360.89 : x
  2. Step 2: Convert to fraction form
    1,433,880.72/1,978,811.82 = 789,360.89/x
  3. Step 3: Cross multiply
    1,433,880.72x = 1,978,811.82 × 789,360.89
  4. Step 4: Simplify right side
    1,433,880.72x = 1,561,996,649,483.66
  5. Step 5: Solve for x
    x = 1,561,996,649,483.66/1,433,880.72
  6. Step 6: Final answer
    x = 1,089,349.08

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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.