Finding the Fourth Proportional to 419,411.67, 578,794.71 and 228,424.92
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Solution
The fourth proportional to 419,411.67, 578,794.71 and 228,424.92 is: 315,229.99
Step by Step Solution
- Step 1: Write the proportion equation
419,411.67 : 578,794.71 = 228,424.92 : x - Step 2: Convert to fraction form
419,411.67/578,794.71 = 228,424.92/x - Step 3: Cross multiply
419,411.67x = 578,794.71 × 228,424.92 - Step 4: Simplify right side
419,411.67x = 132,211,135,328.17 - Step 5: Solve for x
x = 132,211,135,328.17/419,411.67 - Step 6: Final answer
x = 315,229.99
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1.5x scale
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.