Home / 509,579.10-764,441.55-154,620.90

Finding the Fourth Proportional to 509,579.10, 764,441.55 and 154,620.90

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Solution

The fourth proportional to 509,579.10, 764,441.55 and 154,620.90 is: 231,953.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,579.10 : 764,441.55 = 154,620.90 : x
  2. Step 2: Convert to fraction form
    509,579.10/764,441.55 = 154,620.90/x
  3. Step 3: Cross multiply
    509,579.10x = 764,441.55 × 154,620.90
  4. Step 4: Simplify right side
    509,579.10x = 118,198,640,458.40
  5. Step 5: Solve for x
    x = 118,198,640,458.40/509,579.10
  6. Step 6: Final answer
    x = 231,953.47

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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.