Home / 500,684.92-690,974.64-285,892.36

Finding the Fourth Proportional to 500,684.92, 690,974.64 and 285,892.36

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Solution

The fourth proportional to 500,684.92, 690,974.64 and 285,892.36 is: 394,548.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,684.92 : 690,974.64 = 285,892.36 : x
  2. Step 2: Convert to fraction form
    500,684.92/690,974.64 = 285,892.36/x
  3. Step 3: Cross multiply
    500,684.92x = 690,974.64 × 285,892.36
  4. Step 4: Simplify right side
    500,684.92x = 197,544,370,529.75
  5. Step 5: Solve for x
    x = 197,544,370,529.75/500,684.92
  6. Step 6: Final answer
    x = 394,548.27

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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.