Finding the Fourth Proportional to 394,412.09, 544,331.94 and 228,876.53
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Solution
The fourth proportional to 394,412.09, 544,331.94 and 228,876.53 is: 315,874.71
Step by Step Solution
- Step 1: Write the proportion equation
394,412.09 : 544,331.94 = 228,876.53 : x - Step 2: Convert to fraction form
394,412.09/544,331.94 = 228,876.53/x - Step 3: Cross multiply
394,412.09x = 544,331.94 × 228,876.53 - Step 4: Simplify right side
394,412.09x = 124,584,805,595.37 - Step 5: Solve for x
x = 124,584,805,595.37/394,412.09 - Step 6: Final answer
x = 315,874.71
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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.