Finding the Fourth Proportional to 638,577.21, 881,191.52 and 352,091.14
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Solution
The fourth proportional to 638,577.21, 881,191.52 and 352,091.14 is: 485,860.95
Step by Step Solution
- Step 1: Write the proportion equation
638,577.21 : 881,191.52 = 352,091.14 : x - Step 2: Convert to fraction form
638,577.21/881,191.52 = 352,091.14/x - Step 3: Cross multiply
638,577.21x = 881,191.52 × 352,091.14 - Step 4: Simplify right side
638,577.21x = 310,259,726,835.13 - Step 5: Solve for x
x = 310,259,726,835.13/638,577.21 - Step 6: Final answer
x = 485,860.95
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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.