Finding the Fourth Proportional to 905,021.95, 1,247,906.81 and 577,904.84
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Solution
The fourth proportional to 905,021.95, 1,247,906.81 and 577,904.84 is: 796,855.14
Step by Step Solution
- Step 1: Write the proportion equation
905,021.95 : 1,247,906.81 = 577,904.84 : x - Step 2: Convert to fraction form
905,021.95/1,247,906.81 = 577,904.84/x - Step 3: Cross multiply
905,021.95x = 1,247,906.81 × 577,904.84 - Step 4: Simplify right side
905,021.95x = 721,171,387,414.02 - Step 5: Solve for x
x = 721,171,387,414.02/905,021.95 - Step 6: Final answer
x = 796,855.14
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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.