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Finding the Fourth Proportional to 449,675.36, 620,532.96 and 245,721.44

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Solution

The fourth proportional to 449,675.36, 620,532.96 and 245,721.44 is: 339,085.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,675.36 : 620,532.96 = 245,721.44 : x
  2. Step 2: Convert to fraction form
    449,675.36/620,532.96 = 245,721.44/x
  3. Step 3: Cross multiply
    449,675.36x = 620,532.96 × 245,721.44
  4. Step 4: Simplify right side
    449,675.36x = 152,478,252,498.66
  5. Step 5: Solve for x
    x = 152,478,252,498.66/449,675.36
  6. Step 6: Final answer
    x = 339,085.18

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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.