Home / 500,213.99-690,231.03-285,341.24

Finding the Fourth Proportional to 500,213.99, 690,231.03 and 285,341.24

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Solution

The fourth proportional to 500,213.99, 690,231.03 and 285,341.24 is: 393,734.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,213.99 : 690,231.03 = 285,341.24 : x
  2. Step 2: Convert to fraction form
    500,213.99/690,231.03 = 285,341.24/x
  3. Step 3: Cross multiply
    500,213.99x = 690,231.03 × 285,341.24
  4. Step 4: Simplify right side
    500,213.99x = 196,951,377,986.68
  5. Step 5: Solve for x
    x = 196,951,377,986.68/500,213.99
  6. Step 6: Final answer
    x = 393,734.25

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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.