Finding the Fourth Proportional to 668,382.48, 922,355.76 and 377,989.44
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Solution
The fourth proportional to 668,382.48, 922,355.76 and 377,989.44 is: 521,618.61
Step by Step Solution
- Step 1: Write the proportion equation
668,382.48 : 922,355.76 = 377,989.44 : x - Step 2: Convert to fraction form
668,382.48/922,355.76 = 377,989.44/x - Step 3: Cross multiply
668,382.48x = 922,355.76 × 377,989.44 - Step 4: Simplify right side
668,382.48x = 348,640,737,203.17 - Step 5: Solve for x
x = 348,640,737,203.17/668,382.48 - Step 6: Final answer
x = 521,618.61
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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.