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Finding the Fourth Proportional to 449,702.96, 620,599.05 and 245,766.56

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Solution

The fourth proportional to 449,702.96, 620,599.05 and 245,766.56 is: 339,162.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,702.96 : 620,599.05 = 245,766.56 : x
  2. Step 2: Convert to fraction form
    449,702.96/620,599.05 = 245,766.56/x
  3. Step 3: Cross multiply
    449,702.96x = 620,599.05 × 245,766.56
  4. Step 4: Simplify right side
    449,702.96x = 152,522,490,554.77
  5. Step 5: Solve for x
    x = 152,522,490,554.77/449,702.96
  6. Step 6: Final answer
    x = 339,162.75

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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.