Finding the Fourth Proportional to 638,990.88, 881,850.96 and 370,718.88
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Solution
The fourth proportional to 638,990.88, 881,850.96 and 370,718.88 is: 511,617.32
Step by Step Solution
- Step 1: Write the proportion equation
638,990.88 : 881,850.96 = 370,718.88 : x - Step 2: Convert to fraction form
638,990.88/881,850.96 = 370,718.88/x - Step 3: Cross multiply
638,990.88x = 881,850.96 × 370,718.88 - Step 4: Simplify right side
638,990.88x = 326,918,800,218.13 - Step 5: Solve for x
x = 326,918,800,218.13/638,990.88 - Step 6: Final answer
x = 511,617.32
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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.