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Finding the Fourth Proportional to 449,654.03, 620,515.08 and 245,700.49

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Solution

The fourth proportional to 449,654.03, 620,515.08 and 245,700.49 is: 339,062.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,654.03 : 620,515.08 = 245,700.49 : x
  2. Step 2: Convert to fraction form
    449,654.03/620,515.08 = 245,700.49/x
  3. Step 3: Cross multiply
    449,654.03x = 620,515.08 × 245,700.49
  4. Step 4: Simplify right side
    449,654.03x = 152,460,858,820.57
  5. Step 5: Solve for x
    x = 152,460,858,820.57/449,654.03
  6. Step 6: Final answer
    x = 339,062.58

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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.