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Finding the Fourth Proportional to 449,810.88, 620,765.28 and 248,625.60

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Solution

The fourth proportional to 449,810.88, 620,765.28 and 248,625.60 is: 343,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,810.88 : 620,765.28 = 248,625.60 : x
  2. Step 2: Convert to fraction form
    449,810.88/620,765.28 = 248,625.60/x
  3. Step 3: Cross multiply
    449,810.88x = 620,765.28 × 248,625.60
  4. Step 4: Simplify right side
    449,810.88x = 154,338,140,199.17
  5. Step 5: Solve for x
    x = 154,338,140,199.17/449,810.88
  6. Step 6: Final answer
    x = 343,117.85

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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.