Finding the Fourth Proportional to 996,090.12, 1,486,366.20 and 888,736.05
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Solution
The fourth proportional to 996,090.12, 1,486,366.20 and 888,736.05 is: 1,326,172.40
Step by Step Solution
- Step 1: Write the proportion equation
996,090.12 : 1,486,366.20 = 888,736.05 : x - Step 2: Convert to fraction form
996,090.12/1,486,366.20 = 888,736.05/x - Step 3: Cross multiply
996,090.12x = 1,486,366.20 × 888,736.05 - Step 4: Simplify right side
996,090.12x = 1,320,987,225,441.51 - Step 5: Solve for x
x = 1,320,987,225,441.51/996,090.12 - Step 6: Final answer
x = 1,326,172.40
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.