Home / 509,583.66-764,467.41-209,900.64

Finding the Fourth Proportional to 509,583.66, 764,467.41 and 209,900.64

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Solution

The fourth proportional to 509,583.66, 764,467.41 and 209,900.64 is: 314,888.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,583.66 : 764,467.41 = 209,900.64 : x
  2. Step 2: Convert to fraction form
    509,583.66/764,467.41 = 209,900.64/x
  3. Step 3: Cross multiply
    509,583.66x = 764,467.41 × 209,900.64
  4. Step 4: Simplify right side
    509,583.66x = 160,462,198,618.14
  5. Step 5: Solve for x
    x = 160,462,198,618.14/509,583.66
  6. Step 6: Final answer
    x = 314,888.82

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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.