Home / 500,592.06-690,882.75-285,682.86

Finding the Fourth Proportional to 500,592.06, 690,882.75 and 285,682.86

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Solution

The fourth proportional to 500,592.06, 690,882.75 and 285,682.86 is: 394,279.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,592.06 : 690,882.75 = 285,682.86 : x
  2. Step 2: Convert to fraction form
    500,592.06/690,882.75 = 285,682.86/x
  3. Step 3: Cross multiply
    500,592.06x = 690,882.75 × 285,682.86
  4. Step 4: Simplify right side
    500,592.06x = 197,373,359,944.67
  5. Step 5: Solve for x
    x = 197,373,359,944.67/500,592.06
  6. Step 6: Final answer
    x = 394,279.85

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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.