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Finding the Fourth Proportional to 509,381.44, 764,191.68 and 500,918.56

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Solution

The fourth proportional to 509,381.44, 764,191.68 and 500,918.56 is: 751,495.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,381.44 : 764,191.68 = 500,918.56 : x
  2. Step 2: Convert to fraction form
    509,381.44/764,191.68 = 500,918.56/x
  3. Step 3: Cross multiply
    509,381.44x = 764,191.68 × 500,918.56
  4. Step 4: Simplify right side
    509,381.44x = 382,797,795,909.58
  5. Step 5: Solve for x
    x = 382,797,795,909.58/509,381.44
  6. Step 6: Final answer
    x = 751,495.37

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1.5x scale

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.