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Finding the Fourth Proportional to 449,792.64, 620,750.40 and 248,592

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Solution

The fourth proportional to 449,792.64, 620,750.40 and 248,592 is: 343,077.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,792.64 : 620,750.40 = 248,592 : x
  2. Step 2: Convert to fraction form
    449,792.64/620,750.40 = 248,592/x
  3. Step 3: Cross multiply
    449,792.64x = 620,750.40 × 248,592
  4. Step 4: Simplify right side
    449,792.64x = 154,313,583,436.80
  5. Step 5: Solve for x
    x = 154,313,583,436.80/449,792.64
  6. Step 6: Final answer
    x = 343,077.16

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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.