Finding the Fourth Proportional to 638,378.08, 880,944.06 and 351,898.09
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Solution
The fourth proportional to 638,378.08, 880,944.06 and 351,898.09 is: 485,609.61
Step by Step Solution
- Step 1: Write the proportion equation
638,378.08 : 880,944.06 = 351,898.09 : x - Step 2: Convert to fraction form
638,378.08/880,944.06 = 351,898.09/x - Step 3: Cross multiply
638,378.08x = 880,944.06 × 351,898.09 - Step 4: Simplify right side
638,378.08x = 310,002,532,110.85 - Step 5: Solve for x
x = 310,002,532,110.85/638,378.08 - Step 6: Final answer
x = 485,609.61
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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.