Home / 509,568.20-764,352.30-209,949.20

Finding the Fourth Proportional to 509,568.20, 764,352.30 and 209,949.20

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Solution

The fourth proportional to 509,568.20, 764,352.30 and 209,949.20 is: 314,923.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,568.20 : 764,352.30 = 209,949.20 : x
  2. Step 2: Convert to fraction form
    509,568.20/764,352.30 = 209,949.20/x
  3. Step 3: Cross multiply
    509,568.20x = 764,352.30 × 209,949.20
  4. Step 4: Simplify right side
    509,568.20x = 160,475,153,903.16
  5. Step 5: Solve for x
    x = 160,475,153,903.16/509,568.20
  6. Step 6: Final answer
    x = 314,923.80

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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.