Home / 509,814.20-764,721.30-444,860.30

Finding the Fourth Proportional to 509,814.20, 764,721.30 and 444,860.30

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Solution

The fourth proportional to 509,814.20, 764,721.30 and 444,860.30 is: 667,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,814.20 : 764,721.30 = 444,860.30 : x
  2. Step 2: Convert to fraction form
    509,814.20/764,721.30 = 444,860.30/x
  3. Step 3: Cross multiply
    509,814.20x = 764,721.30 × 444,860.30
  4. Step 4: Simplify right side
    509,814.20x = 340,194,146,934.39
  5. Step 5: Solve for x
    x = 340,194,146,934.39/509,814.20
  6. Step 6: Final answer
    x = 667,290.45

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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.