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Finding the Fourth Proportional to 449,350.74, 620,104.29 and 245,404.50

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Solution

The fourth proportional to 449,350.74, 620,104.29 and 245,404.50 is: 338,658.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,350.74 : 620,104.29 = 245,404.50 : x
  2. Step 2: Convert to fraction form
    449,350.74/620,104.29 = 245,404.50/x
  3. Step 3: Cross multiply
    449,350.74x = 620,104.29 × 245,404.50
  4. Step 4: Simplify right side
    449,350.74x = 152,176,383,235.31
  5. Step 5: Solve for x
    x = 152,176,383,235.31/449,350.74
  6. Step 6: Final answer
    x = 338,658.36

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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.