Finding the Fourth Proportional to 655,231.68, 904,070.16 and 368,647.20
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Solution
The fourth proportional to 655,231.68, 904,070.16 and 368,647.20 is: 508,648.99
Step by Step Solution
- Step 1: Write the proportion equation
655,231.68 : 904,070.16 = 368,647.20 : x - Step 2: Convert to fraction form
655,231.68/904,070.16 = 368,647.20/x - Step 3: Cross multiply
655,231.68x = 904,070.16 × 368,647.20 - Step 4: Simplify right side
655,231.68x = 333,282,933,087.55 - Step 5: Solve for x
x = 333,282,933,087.55/655,231.68 - Step 6: Final answer
x = 508,648.99
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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.