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Finding the Fourth Proportional to 494,502.77, 682,501.19 and 290,553.65

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Solution

The fourth proportional to 494,502.77, 682,501.19 and 290,553.65 is: 401,015.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,502.77 : 682,501.19 = 290,553.65 : x
  2. Step 2: Convert to fraction form
    494,502.77/682,501.19 = 290,553.65/x
  3. Step 3: Cross multiply
    494,502.77x = 682,501.19 × 290,553.65
  4. Step 4: Simplify right side
    494,502.77x = 198,303,208,471.34
  5. Step 5: Solve for x
    x = 198,303,208,471.34/494,502.77
  6. Step 6: Final answer
    x = 401,015.37

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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.