Finding the Fourth Proportional to 638,088.84, 880,605.26 and 351,608.93
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Solution
The fourth proportional to 638,088.84, 880,605.26 and 351,608.93 is: 485,243.82
Step by Step Solution
- Step 1: Write the proportion equation
638,088.84 : 880,605.26 = 351,608.93 : x - Step 2: Convert to fraction form
638,088.84/880,605.26 = 351,608.93/x - Step 3: Cross multiply
638,088.84x = 880,605.26 × 351,608.93 - Step 4: Simplify right side
638,088.84x = 309,628,667,059.90 - Step 5: Solve for x
x = 309,628,667,059.90/638,088.84 - Step 6: Final answer
x = 485,243.82
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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.