Home / 509,930.08-764,982.60-273,209.20

Finding the Fourth Proportional to 509,930.08, 764,982.60 and 273,209.20

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Solution

The fourth proportional to 509,930.08, 764,982.60 and 273,209.20 is: 409,860.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,930.08 : 764,982.60 = 273,209.20 : x
  2. Step 2: Convert to fraction form
    509,930.08/764,982.60 = 273,209.20/x
  3. Step 3: Cross multiply
    509,930.08x = 764,982.60 × 273,209.20
  4. Step 4: Simplify right side
    509,930.08x = 209,000,284,159.92
  5. Step 5: Solve for x
    x = 209,000,284,159.92/509,930.08
  6. Step 6: Final answer
    x = 409,860.67

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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.