Home / 500,856.30-691,421.06-285,954.86

Finding the Fourth Proportional to 500,856.30, 691,421.06 and 285,954.86

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Solution

The fourth proportional to 500,856.30, 691,421.06 and 285,954.86 is: 394,754.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,856.30 : 691,421.06 = 285,954.86 : x
  2. Step 2: Convert to fraction form
    500,856.30/691,421.06 = 285,954.86/x
  3. Step 3: Cross multiply
    500,856.30x = 691,421.06 × 285,954.86
  4. Step 4: Simplify right side
    500,856.30x = 197,715,214,856.79
  5. Step 5: Solve for x
    x = 197,715,214,856.79/500,856.30
  6. Step 6: Final answer
    x = 394,754.37

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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.