Home / 690,760.31-1,036,730.93-270,331.43

Finding the Fourth Proportional to 690,760.31, 1,036,730.93 and 270,331.43

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Solution

The fourth proportional to 690,760.31, 1,036,730.93 and 270,331.43 is: 405,728.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,760.31 : 1,036,730.93 = 270,331.43 : x
  2. Step 2: Convert to fraction form
    690,760.31/1,036,730.93 = 270,331.43/x
  3. Step 3: Cross multiply
    690,760.31x = 1,036,730.93 × 270,331.43
  4. Step 4: Simplify right side
    690,760.31x = 280,260,954,832.13
  5. Step 5: Solve for x
    x = 280,260,954,832.13/690,760.31
  6. Step 6: Final answer
    x = 405,728.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.