Home / 727,600.92-1,004,120.31-405,311.23

Finding the Fourth Proportional to 727,600.92, 1,004,120.31 and 405,311.23

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Solution

The fourth proportional to 727,600.92, 1,004,120.31 and 405,311.23 is: 559,346.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,600.92 : 1,004,120.31 = 405,311.23 : x
  2. Step 2: Convert to fraction form
    727,600.92/1,004,120.31 = 405,311.23/x
  3. Step 3: Cross multiply
    727,600.92x = 1,004,120.31 × 405,311.23
  4. Step 4: Simplify right side
    727,600.92x = 406,981,237,914.08
  5. Step 5: Solve for x
    x = 406,981,237,914.08/727,600.92
  6. Step 6: Final answer
    x = 559,346.79

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1.5x scale

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.