Finding the Fourth Proportional to 2,257,623.83, 3,115,504.62 and 1,225,105.63
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Solution
The fourth proportional to 2,257,623.83, 3,115,504.62 and 1,225,105.63 is: 1,690,636.94
Step by Step Solution
- Step 1: Write the proportion equation
2,257,623.83 : 3,115,504.62 = 1,225,105.63 : x - Step 2: Convert to fraction form
2,257,623.83/3,115,504.62 = 1,225,105.63/x - Step 3: Cross multiply
2,257,623.83x = 3,115,504.62 × 1,225,105.63 - Step 4: Simplify right side
2,257,623.83x = 3,816,822,242,464.25 - Step 5: Solve for x
x = 3,816,822,242,464.25/2,257,623.83 - Step 6: Final answer
x = 1,690,636.94
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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.