Finding the Fourth Proportional to 638,168.52, 880,691.01 and 351,707.06
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Solution
The fourth proportional to 638,168.52, 880,691.01 and 351,707.06 is: 485,365.91
Step by Step Solution
- Step 1: Write the proportion equation
638,168.52 : 880,691.01 = 351,707.06 : x - Step 2: Convert to fraction form
638,168.52/880,691.01 = 351,707.06/x - Step 3: Cross multiply
638,168.52x = 880,691.01 × 351,707.06 - Step 4: Simplify right side
638,168.52x = 309,745,241,492.08 - Step 5: Solve for x
x = 309,745,241,492.08/638,168.52 - Step 6: Final answer
x = 485,365.91
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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.