Home / 988,326.20-1,484,238.90-764,231.60

Finding the Fourth Proportional to 988,326.20, 1,484,238.90 and 764,231.60

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Solution

The fourth proportional to 988,326.20, 1,484,238.90 and 764,231.60 is: 1,147,700.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,326.20 : 1,484,238.90 = 764,231.60 : x
  2. Step 2: Convert to fraction form
    988,326.20/1,484,238.90 = 764,231.60/x
  3. Step 3: Cross multiply
    988,326.20x = 1,484,238.90 × 764,231.60
  4. Step 4: Simplify right side
    988,326.20x = 1,134,302,269,329.24
  5. Step 5: Solve for x
    x = 1,134,302,269,329.24/988,326.20
  6. Step 6: Final answer
    x = 1,147,700.29

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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.