Finding the Fourth Proportional to 861,639.53, 1,292,360.81 and 230,602.55
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Solution
The fourth proportional to 861,639.53, 1,292,360.81 and 230,602.55 is: 345,877.46
Step by Step Solution
- Step 1: Write the proportion equation
861,639.53 : 1,292,360.81 = 230,602.55 : x - Step 2: Convert to fraction form
861,639.53/1,292,360.81 = 230,602.55/x - Step 3: Cross multiply
861,639.53x = 1,292,360.81 × 230,602.55 - Step 4: Simplify right side
861,639.53x = 298,021,690,691.25 - Step 5: Solve for x
x = 298,021,690,691.25/861,639.53 - Step 6: Final answer
x = 345,877.46
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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.