Home / 527,380.22-727,784.37-285,662.21

Finding the Fourth Proportional to 527,380.22, 727,784.37 and 285,662.21

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Solution

The fourth proportional to 527,380.22, 727,784.37 and 285,662.21 is: 394,213.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,380.22 : 727,784.37 = 285,662.21 : x
  2. Step 2: Convert to fraction form
    527,380.22/727,784.37 = 285,662.21/x
  3. Step 3: Cross multiply
    527,380.22x = 727,784.37 × 285,662.21
  4. Step 4: Simplify right side
    527,380.22x = 207,900,487,898.74
  5. Step 5: Solve for x
    x = 207,900,487,898.74/527,380.22
  6. Step 6: Final answer
    x = 394,213.67

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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.