Finding the Fourth Proportional to 1,347,207.05, 1,858,868.20 and 774,136.50
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Solution
The fourth proportional to 1,347,207.05, 1,858,868.20 and 774,136.50 is: 1,068,148.90
Step by Step Solution
- Step 1: Write the proportion equation
1,347,207.05 : 1,858,868.20 = 774,136.50 : x - Step 2: Convert to fraction form
1,347,207.05/1,858,868.20 = 774,136.50/x - Step 3: Cross multiply
1,347,207.05x = 1,858,868.20 × 774,136.50 - Step 4: Simplify right side
1,347,207.05x = 1,439,017,722,309.30 - Step 5: Solve for x
x = 1,439,017,722,309.30/1,347,207.05 - Step 6: Final answer
x = 1,068,148.90
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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.