Home / 509,556.64-764,333.88-135,579.64

Finding the Fourth Proportional to 509,556.64, 764,333.88 and 135,579.64

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Solution

The fourth proportional to 509,556.64, 764,333.88 and 135,579.64 is: 203,369.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,556.64 : 764,333.88 = 135,579.64 : x
  2. Step 2: Convert to fraction form
    509,556.64/764,333.88 = 135,579.64/x
  3. Step 3: Cross multiply
    509,556.64x = 764,333.88 × 135,579.64
  4. Step 4: Simplify right side
    509,556.64x = 103,628,112,290.20
  5. Step 5: Solve for x
    x = 103,628,112,290.20/509,556.64
  6. Step 6: Final answer
    x = 203,369.17

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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.