Finding the Fourth Proportional to 419,284.09, 578,622.45 and 228,307.96
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Solution
The fourth proportional to 419,284.09, 578,622.45 and 228,307.96 is: 315,070.65
Step by Step Solution
- Step 1: Write the proportion equation
419,284.09 : 578,622.45 = 228,307.96 : x - Step 2: Convert to fraction form
419,284.09/578,622.45 = 228,307.96/x - Step 3: Cross multiply
419,284.09x = 578,622.45 × 228,307.96 - Step 4: Simplify right side
419,284.09x = 132,104,111,169.70 - Step 5: Solve for x
x = 132,104,111,169.70/419,284.09 - Step 6: Final answer
x = 315,070.65
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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.