Home / 500,462.92-690,688.51-285,635.43

Finding the Fourth Proportional to 500,462.92, 690,688.51 and 285,635.43

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Solution

The fourth proportional to 500,462.92, 690,688.51 and 285,635.43 is: 394,205.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,462.92 : 690,688.51 = 285,635.43 : x
  2. Step 2: Convert to fraction form
    500,462.92/690,688.51 = 285,635.43/x
  3. Step 3: Cross multiply
    500,462.92x = 690,688.51 × 285,635.43
  4. Step 4: Simplify right side
    500,462.92x = 197,285,106,245.74
  5. Step 5: Solve for x
    x = 197,285,106,245.74/500,462.92
  6. Step 6: Final answer
    x = 394,205.24

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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.