Finding the Fourth Proportional to 2,153,960.63, 2,972,906.75 and 1,283,305.36
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Solution
The fourth proportional to 2,153,960.63, 2,972,906.75 and 1,283,305.36 is: 1,771,224.19
Step by Step Solution
- Step 1: Write the proportion equation
2,153,960.63 : 2,972,906.75 = 1,283,305.36 : x - Step 2: Convert to fraction form
2,153,960.63/2,972,906.75 = 1,283,305.36/x - Step 3: Cross multiply
2,153,960.63x = 2,972,906.75 × 1,283,305.36 - Step 4: Simplify right side
2,153,960.63x = 3,815,147,167,055.18 - Step 5: Solve for x
x = 3,815,147,167,055.18/2,153,960.63 - Step 6: Final answer
x = 1,771,224.19
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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.