Finding the Fourth Proportional to 638,204.27, 880,709.99 and 347,818.05
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Solution
The fourth proportional to 638,204.27, 880,709.99 and 347,818.05 is: 479,982.42
Step by Step Solution
- Step 1: Write the proportion equation
638,204.27 : 880,709.99 = 347,818.05 : x - Step 2: Convert to fraction form
638,204.27/880,709.99 = 347,818.05/x - Step 3: Cross multiply
638,204.27x = 880,709.99 × 347,818.05 - Step 4: Simplify right side
638,204.27x = 306,326,830,576.47 - Step 5: Solve for x
x = 306,326,830,576.47/638,204.27 - Step 6: Final answer
x = 479,982.42
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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.