Home / 690,738.50-1,036,698.24-270,309.62

Finding the Fourth Proportional to 690,738.50, 1,036,698.24 and 270,309.62

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Solution

The fourth proportional to 690,738.50, 1,036,698.24 and 270,309.62 is: 405,695.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,738.50 : 1,036,698.24 = 270,309.62 : x
  2. Step 2: Convert to fraction form
    690,738.50/1,036,698.24 = 270,309.62/x
  3. Step 3: Cross multiply
    690,738.50x = 1,036,698.24 × 270,309.62
  4. Step 4: Simplify right side
    690,738.50x = 280,229,507,309.07
  5. Step 5: Solve for x
    x = 280,229,507,309.07/690,738.50
  6. Step 6: Final answer
    x = 405,695.51

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1.5x scale

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.