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Finding the Fourth Proportional to 509,847.21, 764,726.67 and 239,911.34

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Solution

The fourth proportional to 509,847.21, 764,726.67 and 239,911.34 is: 359,846.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,847.21 : 764,726.67 = 239,911.34 : x
  2. Step 2: Convert to fraction form
    509,847.21/764,726.67 = 239,911.34/x
  3. Step 3: Cross multiply
    509,847.21x = 764,726.67 × 239,911.34
  4. Step 4: Simplify right side
    509,847.21x = 183,466,596,309.80
  5. Step 5: Solve for x
    x = 183,466,596,309.80/509,847.21
  6. Step 6: Final answer
    x = 359,846.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.