Finding the Fourth Proportional to 419,468.76, 578,875.74 and 228,481.68
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Solution
The fourth proportional to 419,468.76, 578,875.74 and 228,481.68 is: 315,309.54
Step by Step Solution
- Step 1: Write the proportion equation
419,468.76 : 578,875.74 = 228,481.68 : x - Step 2: Convert to fraction form
419,468.76/578,875.74 = 228,481.68/x - Step 3: Cross multiply
419,468.76x = 578,875.74 × 228,481.68 - Step 4: Simplify right side
419,468.76x = 132,262,501,586.44 - Step 5: Solve for x
x = 132,262,501,586.44/419,468.76 - Step 6: Final answer
x = 315,309.54
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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.