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Finding the Fourth Proportional to 449,579.73, 620,401.68 and 245,637.72

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Solution

The fourth proportional to 449,579.73, 620,401.68 and 245,637.72 is: 338,970.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,579.73 : 620,401.68 = 245,637.72 : x
  2. Step 2: Convert to fraction form
    449,579.73/620,401.68 = 245,637.72/x
  3. Step 3: Cross multiply
    449,579.73x = 620,401.68 × 245,637.72
  4. Step 4: Simplify right side
    449,579.73x = 152,394,054,159.37
  5. Step 5: Solve for x
    x = 152,394,054,159.37/449,579.73
  6. Step 6: Final answer
    x = 338,970.03

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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.