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Finding the Fourth Proportional to 449,999.84, 671,030.13 and 445,949.43

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Solution

The fourth proportional to 449,999.84, 671,030.13 and 445,949.43 is: 664,990.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,999.84 : 671,030.13 = 445,949.43 : x
  2. Step 2: Convert to fraction form
    449,999.84/671,030.13 = 445,949.43/x
  3. Step 3: Cross multiply
    449,999.84x = 671,030.13 × 445,949.43
  4. Step 4: Simplify right side
    449,999.84x = 299,245,503,986.33
  5. Step 5: Solve for x
    x = 299,245,503,986.33/449,999.84
  6. Step 6: Final answer
    x = 664,990.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.