Home / 1,434,133.67-1,979,029.32-789,427.94

Finding the Fourth Proportional to 1,434,133.67, 1,979,029.32 and 789,427.94

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Solution

The fourth proportional to 1,434,133.67, 1,979,029.32 and 789,427.94 is: 1,089,369.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,133.67 : 1,979,029.32 = 789,427.94 : x
  2. Step 2: Convert to fraction form
    1,434,133.67/1,979,029.32 = 789,427.94/x
  3. Step 3: Cross multiply
    1,434,133.67x = 1,979,029.32 × 789,427.94
  4. Step 4: Simplify right side
    1,434,133.67x = 1,562,301,029,392.05
  5. Step 5: Solve for x
    x = 1,562,301,029,392.05/1,434,133.67
  6. Step 6: Final answer
    x = 1,089,369.19

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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.