Finding the Fourth Proportional to 1,112,518.47, 1,535,211.05 and 629,184.99
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Solution
The fourth proportional to 1,112,518.47, 1,535,211.05 and 629,184.99 is: 868,238.84
Step by Step Solution
- Step 1: Write the proportion equation
1,112,518.47 : 1,535,211.05 = 629,184.99 : x - Step 2: Convert to fraction form
1,112,518.47/1,535,211.05 = 629,184.99/x - Step 3: Cross multiply
1,112,518.47x = 1,535,211.05 × 629,184.99 - Step 4: Simplify right side
1,112,518.47x = 965,931,745,996.22 - Step 5: Solve for x
x = 965,931,745,996.22/1,112,518.47 - Step 6: Final answer
x = 868,238.84
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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.