Finding the Fourth Proportional to 1,019,447.61, 1,528,161.20 and 478,735.95
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Solution
The fourth proportional to 1,019,447.61, 1,528,161.20 and 478,735.95 is: 717,629.52
Step by Step Solution
- Step 1: Write the proportion equation
1,019,447.61 : 1,528,161.20 = 478,735.95 : x - Step 2: Convert to fraction form
1,019,447.61/1,528,161.20 = 478,735.95/x - Step 3: Cross multiply
1,019,447.61x = 1,528,161.20 × 478,735.95 - Step 4: Simplify right side
1,019,447.61x = 731,585,703,835.14 - Step 5: Solve for x
x = 731,585,703,835.14/1,019,447.61 - Step 6: Final answer
x = 717,629.52
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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.