Home / 988,942.85-1,483,662.99-456,840.35

Finding the Fourth Proportional to 988,942.85, 1,483,662.99 and 456,840.35

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Solution

The fourth proportional to 988,942.85, 1,483,662.99 and 456,840.35 is: 685,375.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,942.85 : 1,483,662.99 = 456,840.35 : x
  2. Step 2: Convert to fraction form
    988,942.85/1,483,662.99 = 456,840.35/x
  3. Step 3: Cross multiply
    988,942.85x = 1,483,662.99 × 456,840.35
  4. Step 4: Simplify right side
    988,942.85x = 677,797,119,633.65
  5. Step 5: Solve for x
    x = 677,797,119,633.65/988,942.85
  6. Step 6: Final answer
    x = 685,375.42

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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.