Finding the Fourth Proportional to 633,538.81, 874,293.47 and 347,039.99
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Solution
The fourth proportional to 633,538.81, 874,293.47 and 347,039.99 is: 478,920.61
Step by Step Solution
- Step 1: Write the proportion equation
633,538.81 : 874,293.47 = 347,039.99 : x - Step 2: Convert to fraction form
633,538.81/874,293.47 = 347,039.99/x - Step 3: Cross multiply
633,538.81x = 874,293.47 × 347,039.99 - Step 4: Simplify right side
633,538.81x = 303,414,793,582.00 - Step 5: Solve for x
x = 303,414,793,582.00/633,538.81 - Step 6: Final answer
x = 478,920.61
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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.