Finding the Fourth Proportional to 638,447.25, 955,305.30 and 511,703.08
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Solution
The fourth proportional to 638,447.25, 955,305.30 and 511,703.08 is: 765,658.66
Step by Step Solution
- Step 1: Write the proportion equation
638,447.25 : 955,305.30 = 511,703.08 : x - Step 2: Convert to fraction form
638,447.25/955,305.30 = 511,703.08/x - Step 3: Cross multiply
638,447.25x = 955,305.30 × 511,703.08 - Step 4: Simplify right side
638,447.25x = 488,832,664,350.32 - Step 5: Solve for x
x = 488,832,664,350.32/638,447.25 - Step 6: Final answer
x = 765,658.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.