Home / 509,815.70-764,723.55-444,861.80

Finding the Fourth Proportional to 509,815.70, 764,723.55 and 444,861.80

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Solution

The fourth proportional to 509,815.70, 764,723.55 and 444,861.80 is: 667,292.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,815.70 : 764,723.55 = 444,861.80 : x
  2. Step 2: Convert to fraction form
    509,815.70/764,723.55 = 444,861.80/x
  3. Step 3: Cross multiply
    509,815.70x = 764,723.55 × 444,861.80
  4. Step 4: Simplify right side
    509,815.70x = 340,196,294,955.39
  5. Step 5: Solve for x
    x = 340,196,294,955.39/509,815.70
  6. Step 6: Final answer
    x = 667,292.70

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Double scale
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Similar ratio
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1.5x scale

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.