Finding the Fourth Proportional to 419,035.41, 578,257.79 and 228,044.70
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Solution
The fourth proportional to 419,035.41, 578,257.79 and 228,044.70 is: 314,695.66
Step by Step Solution
- Step 1: Write the proportion equation
419,035.41 : 578,257.79 = 228,044.70 : x - Step 2: Convert to fraction form
419,035.41/578,257.79 = 228,044.70/x - Step 3: Cross multiply
419,035.41x = 578,257.79 × 228,044.70 - Step 4: Simplify right side
419,035.41x = 131,868,623,102.99 - Step 5: Solve for x
x = 131,868,623,102.99/419,035.41 - Step 6: Final answer
x = 314,695.66
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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.