Home / 1,434,145.01-1,979,044.92-789,439.28

Finding the Fourth Proportional to 1,434,145.01, 1,979,044.92 and 789,439.28

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Solution

The fourth proportional to 1,434,145.01, 1,979,044.92 and 789,439.28 is: 1,089,384.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,145.01 : 1,979,044.92 = 789,439.28 : x
  2. Step 2: Convert to fraction form
    1,434,145.01/1,979,044.92 = 789,439.28/x
  3. Step 3: Cross multiply
    1,434,145.01x = 1,979,044.92 × 789,439.28
  4. Step 4: Simplify right side
    1,434,145.01x = 1,562,335,786,837.23
  5. Step 5: Solve for x
    x = 1,562,335,786,837.23/1,434,145.01
  6. Step 6: Final answer
    x = 1,089,384.81

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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.