Home / 1,433,919.17-1,978,879.51-789,332.51

Finding the Fourth Proportional to 1,433,919.17, 1,978,879.51 and 789,332.51

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Solution

The fourth proportional to 1,433,919.17, 1,978,879.51 and 789,332.51 is: 1,089,317.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,919.17 : 1,978,879.51 = 789,332.51 : x
  2. Step 2: Convert to fraction form
    1,433,919.17/1,978,879.51 = 789,332.51/x
  3. Step 3: Cross multiply
    1,433,919.17x = 1,978,879.51 × 789,332.51
  4. Step 4: Simplify right side
    1,433,919.17x = 1,561,993,936,549.73
  5. Step 5: Solve for x
    x = 1,561,993,936,549.73/1,433,919.17
  6. Step 6: Final answer
    x = 1,089,317.98

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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.