Finding the Fourth Proportional to 478,222.68, 659,922.03 and 274,263.06
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Solution
The fourth proportional to 478,222.68, 659,922.03 and 274,263.06 is: 378,468.53
Step by Step Solution
- Step 1: Write the proportion equation
478,222.68 : 659,922.03 = 274,263.06 : x - Step 2: Convert to fraction form
478,222.68/659,922.03 = 274,263.06/x - Step 3: Cross multiply
478,222.68x = 659,922.03 × 274,263.06 - Step 4: Simplify right side
478,222.68x = 180,992,235,309.21 - Step 5: Solve for x
x = 180,992,235,309.21/478,222.68 - Step 6: Final answer
x = 378,468.53
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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.