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Finding the Fourth Proportional to 449,071.30, 619,503.60 and 303,927.94

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Solution

The fourth proportional to 449,071.30, 619,503.60 and 303,927.94 is: 419,275.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,071.30 : 619,503.60 = 303,927.94 : x
  2. Step 2: Convert to fraction form
    449,071.30/619,503.60 = 303,927.94/x
  3. Step 3: Cross multiply
    449,071.30x = 619,503.60 × 303,927.94
  4. Step 4: Simplify right side
    449,071.30x = 188,284,452,970.58
  5. Step 5: Solve for x
    x = 188,284,452,970.58/449,071.30
  6. Step 6: Final answer
    x = 419,275.19

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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.