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Finding the Fourth Proportional to 449,504.74, 620,289.12 and 245,514.34

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Solution

The fourth proportional to 449,504.74, 620,289.12 and 245,514.34 is: 338,794.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,504.74 : 620,289.12 = 245,514.34 : x
  2. Step 2: Convert to fraction form
    449,504.74/620,289.12 = 245,514.34/x
  3. Step 3: Cross multiply
    449,504.74x = 620,289.12 × 245,514.34
  4. Step 4: Simplify right side
    449,504.74x = 152,289,873,905.98
  5. Step 5: Solve for x
    x = 152,289,873,905.98/449,504.74
  6. Step 6: Final answer
    x = 338,794.81

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1.5x scale

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.