Home / 1,433,919.74-1,978,880.29-789,333.08

Finding the Fourth Proportional to 1,433,919.74, 1,978,880.29 and 789,333.08

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Solution

The fourth proportional to 1,433,919.74, 1,978,880.29 and 789,333.08 is: 1,089,318.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,919.74 : 1,978,880.29 = 789,333.08 : x
  2. Step 2: Convert to fraction form
    1,433,919.74/1,978,880.29 = 789,333.08/x
  3. Step 3: Cross multiply
    1,433,919.74x = 1,978,880.29 × 789,333.08
  4. Step 4: Simplify right side
    1,433,919.74x = 1,561,995,662,389.26
  5. Step 5: Solve for x
    x = 1,561,995,662,389.26/1,433,919.74
  6. Step 6: Final answer
    x = 1,089,318.76

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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.