Finding the Fourth Proportional to 638,349.09, 880,921.52 and 351,873.96
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Solution
The fourth proportional to 638,349.09, 880,921.52 and 351,873.96 is: 485,585.94
Step by Step Solution
- Step 1: Write the proportion equation
638,349.09 : 880,921.52 = 351,873.96 : x - Step 2: Convert to fraction form
638,349.09/880,921.52 = 351,873.96/x - Step 3: Cross multiply
638,349.09x = 880,921.52 × 351,873.96 - Step 4: Simplify right side
638,349.09x = 309,973,341,927.61 - Step 5: Solve for x
x = 309,973,341,927.61/638,349.09 - Step 6: Final answer
x = 485,585.94
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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.