Finding the Fourth Proportional to 419,935.18, 579,513.94 and 228,949.96
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Solution
The fourth proportional to 419,935.18, 579,513.94 and 228,949.96 is: 315,952.79
Step by Step Solution
- Step 1: Write the proportion equation
419,935.18 : 579,513.94 = 228,949.96 : x - Step 2: Convert to fraction form
419,935.18/579,513.94 = 228,949.96/x - Step 3: Cross multiply
419,935.18x = 579,513.94 × 228,949.96 - Step 4: Simplify right side
419,935.18x = 132,679,693,382.44 - Step 5: Solve for x
x = 132,679,693,382.44/419,935.18 - Step 6: Final answer
x = 315,952.79
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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.