Finding the Fourth Proportional to 419,424.63, 578,812.73 and 228,438.05
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Solution
The fourth proportional to 419,424.63, 578,812.73 and 228,438.05 is: 315,248.17
Step by Step Solution
- Step 1: Write the proportion equation
419,424.63 : 578,812.73 = 228,438.05 : x - Step 2: Convert to fraction form
419,424.63/578,812.73 = 228,438.05/x - Step 3: Cross multiply
419,424.63x = 578,812.73 × 228,438.05 - Step 4: Simplify right side
419,424.63x = 132,222,847,320.12 - Step 5: Solve for x
x = 132,222,847,320.12/419,424.63 - Step 6: Final answer
x = 315,248.17
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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.