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Finding the Fourth Proportional to 449,877.80, 620,835.50 and 256,282.64

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Solution

The fourth proportional to 449,877.80, 620,835.50 and 256,282.64 is: 353,672.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,877.80 : 620,835.50 = 256,282.64 : x
  2. Step 2: Convert to fraction form
    449,877.80/620,835.50 = 256,282.64/x
  3. Step 3: Cross multiply
    449,877.80x = 620,835.50 × 256,282.64
  4. Step 4: Simplify right side
    449,877.80x = 159,109,356,560.13
  5. Step 5: Solve for x
    x = 159,109,356,560.13/449,877.80
  6. Step 6: Final answer
    x = 353,672.39

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.