Finding the Fourth Proportional to 668,590.25, 922,637.92 and 374,235.84
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Solution
The fourth proportional to 668,590.25, 922,637.92 and 374,235.84 is: 516,436.15
Step by Step Solution
- Step 1: Write the proportion equation
668,590.25 : 922,637.92 = 374,235.84 : x - Step 2: Convert to fraction form
668,590.25/922,637.92 = 374,235.84/x - Step 3: Cross multiply
668,590.25x = 922,637.92 × 374,235.84 - Step 4: Simplify right side
668,590.25x = 345,284,177,007.05 - Step 5: Solve for x
x = 345,284,177,007.05/668,590.25 - Step 6: Final answer
x = 516,436.15
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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.