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Finding the Fourth Proportional to 449,503.74, 620,287.74 and 245,513.34

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Solution

The fourth proportional to 449,503.74, 620,287.74 and 245,513.34 is: 338,793.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,503.74 : 620,287.74 = 245,513.34 : x
  2. Step 2: Convert to fraction form
    449,503.74/620,287.74 = 245,513.34/x
  3. Step 3: Cross multiply
    449,503.74x = 620,287.74 × 245,513.34
  4. Step 4: Simplify right side
    449,503.74x = 152,288,914,808.45
  5. Step 5: Solve for x
    x = 152,288,914,808.45/449,503.74
  6. Step 6: Final answer
    x = 338,793.43

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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.