Finding the Fourth Proportional to 1,603,572.31, 2,405,338.38 and 389,158.99
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Solution
The fourth proportional to 1,603,572.31, 2,405,338.38 and 389,158.99 is: 583,733.61
Step by Step Solution
- Step 1: Write the proportion equation
1,603,572.31 : 2,405,338.38 = 389,158.99 : x - Step 2: Convert to fraction form
1,603,572.31/2,405,338.38 = 389,158.99/x - Step 3: Cross multiply
1,603,572.31x = 2,405,338.38 × 389,158.99 - Step 4: Simplify right side
1,603,572.31x = 936,059,054,569.04 - Step 5: Solve for x
x = 936,059,054,569.04/1,603,572.31 - Step 6: Final answer
x = 583,733.61
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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.