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Finding the Fourth Proportional to 449,592.03, 620,429.66 and 245,638.56

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Solution

The fourth proportional to 449,592.03, 620,429.66 and 245,638.56 is: 338,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,592.03 : 620,429.66 = 245,638.56 : x
  2. Step 2: Convert to fraction form
    449,592.03/620,429.66 = 245,638.56/x
  3. Step 3: Cross multiply
    449,592.03x = 620,429.66 × 245,638.56
  4. Step 4: Simplify right side
    449,592.03x = 152,401,448,263.69
  5. Step 5: Solve for x
    x = 152,401,448,263.69/449,592.03
  6. Step 6: Final answer
    x = 338,977.20

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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.