Finding the Fourth Proportional to 1,603,756.19, 2,405,343.66 and 644,173.03
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Solution
The fourth proportional to 1,603,756.19, 2,405,343.66 and 644,173.03 is: 966,142.80
Step by Step Solution
- Step 1: Write the proportion equation
1,603,756.19 : 2,405,343.66 = 644,173.03 : x - Step 2: Convert to fraction form
1,603,756.19/2,405,343.66 = 644,173.03/x - Step 3: Cross multiply
1,603,756.19x = 2,405,343.66 × 644,173.03 - Step 4: Simplify right side
1,603,756.19x = 1,549,457,501,626.77 - Step 5: Solve for x
x = 1,549,457,501,626.77/1,603,756.19 - Step 6: Final answer
x = 966,142.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.