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Finding the Fourth Proportional to 509,655.03, 765,073.11 and 273,459.03

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Solution

The fourth proportional to 509,655.03, 765,073.11 and 273,459.03 is: 410,505.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,655.03 : 765,073.11 = 273,459.03 : x
  2. Step 2: Convert to fraction form
    509,655.03/765,073.11 = 273,459.03/x
  3. Step 3: Cross multiply
    509,655.03x = 765,073.11 × 273,459.03
  4. Step 4: Simplify right side
    509,655.03x = 209,216,150,539.68
  5. Step 5: Solve for x
    x = 209,216,150,539.68/509,655.03
  6. Step 6: Final answer
    x = 410,505.42

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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.