Home / 490,830.99-677,467.05-300,004.35

Finding the Fourth Proportional to 490,830.99, 677,467.05 and 300,004.35

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Solution

The fourth proportional to 490,830.99, 677,467.05 and 300,004.35 is: 414,079.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,830.99 : 677,467.05 = 300,004.35 : x
  2. Step 2: Convert to fraction form
    490,830.99/677,467.05 = 300,004.35/x
  3. Step 3: Cross multiply
    490,830.99x = 677,467.05 × 300,004.35
  4. Step 4: Simplify right side
    490,830.99x = 203,243,060,481.65
  5. Step 5: Solve for x
    x = 203,243,060,481.65/490,830.99
  6. Step 6: Final answer
    x = 414,079.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.