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Finding the Fourth Proportional to 450,379.63, 621,531.78 and 246,448.41

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Solution

The fourth proportional to 450,379.63, 621,531.78 and 246,448.41 is: 340,103.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,379.63 : 621,531.78 = 246,448.41 : x
  2. Step 2: Convert to fraction form
    450,379.63/621,531.78 = 246,448.41/x
  3. Step 3: Cross multiply
    450,379.63x = 621,531.78 × 246,448.41
  4. Step 4: Simplify right side
    450,379.63x = 153,175,519,722.39
  5. Step 5: Solve for x
    x = 153,175,519,722.39/450,379.63
  6. Step 6: Final answer
    x = 340,103.13

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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.