Finding the Fourth Proportional to 419,073.19, 578,320.97 and 228,087.95
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Solution
The fourth proportional to 419,073.19, 578,320.97 and 228,087.95 is: 314,761.35
Step by Step Solution
- Step 1: Write the proportion equation
419,073.19 : 578,320.97 = 228,087.95 : x - Step 2: Convert to fraction form
419,073.19/578,320.97 = 228,087.95/x - Step 3: Cross multiply
419,073.19x = 578,320.97 × 228,087.95 - Step 4: Simplify right side
419,073.19x = 131,908,043,613.73 - Step 5: Solve for x
x = 131,908,043,613.73/419,073.19 - Step 6: Final answer
x = 314,761.35
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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.