Finding the Fourth Proportional to 638,425.73, 881,030.18 and 351,939.53
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Solution
The fourth proportional to 638,425.73, 881,030.18 and 351,939.53 is: 485,678.02
Step by Step Solution
- Step 1: Write the proportion equation
638,425.73 : 881,030.18 = 351,939.53 : x - Step 2: Convert to fraction form
638,425.73/881,030.18 = 351,939.53/x - Step 3: Cross multiply
638,425.73x = 881,030.18 × 351,939.53 - Step 4: Simplify right side
638,425.73x = 310,069,345,705.32 - Step 5: Solve for x
x = 310,069,345,705.32/638,425.73 - Step 6: Final answer
x = 485,678.02
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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.