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Finding the Fourth Proportional to 449,636.00, 620,478.43 and 245,683.67

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Solution

The fourth proportional to 449,636.00, 620,478.43 and 245,683.67 is: 339,032.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,636.00 : 620,478.43 = 245,683.67 : x
  2. Step 2: Convert to fraction form
    449,636.00/620,478.43 = 245,683.67/x
  3. Step 3: Cross multiply
    449,636.00x = 620,478.43 × 245,683.67
  4. Step 4: Simplify right side
    449,636.00x = 152,441,414,121.64
  5. Step 5: Solve for x
    x = 152,441,414,121.64/449,636.00
  6. Step 6: Final answer
    x = 339,032.94

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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.