Finding the Fourth Proportional to 638,083.18, 880,593.96 and 351,603.19
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Solution
The fourth proportional to 638,083.18, 880,593.96 and 351,603.19 is: 485,233.99
Step by Step Solution
- Step 1: Write the proportion equation
638,083.18 : 880,593.96 = 351,603.19 : x - Step 2: Convert to fraction form
638,083.18/880,593.96 = 351,603.19/x - Step 3: Cross multiply
638,083.18x = 880,593.96 × 351,603.19 - Step 4: Simplify right side
638,083.18x = 309,619,645,430.73 - Step 5: Solve for x
x = 309,619,645,430.73/638,083.18 - Step 6: Final answer
x = 485,233.99
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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.