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Finding the Fourth Proportional to 505,367.56, 756,842.82 and 291,487.10

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Solution

The fourth proportional to 505,367.56, 756,842.82 and 291,487.10 is: 436,533.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,367.56 : 756,842.82 = 291,487.10 : x
  2. Step 2: Convert to fraction form
    505,367.56/756,842.82 = 291,487.10/x
  3. Step 3: Cross multiply
    505,367.56x = 756,842.82 × 291,487.10
  4. Step 4: Simplify right side
    505,367.56x = 220,609,918,757.62
  5. Step 5: Solve for x
    x = 220,609,918,757.62/505,367.56
  6. Step 6: Final answer
    x = 436,533.60

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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.