Finding the Fourth Proportional to 2,153,997.24, 2,972,394.96 and 1,187,124.48
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Solution
The fourth proportional to 2,153,997.24, 2,972,394.96 and 1,187,124.48 is: 1,638,164.97
Step by Step Solution
- Step 1: Write the proportion equation
2,153,997.24 : 2,972,394.96 = 1,187,124.48 : x - Step 2: Convert to fraction form
2,153,997.24/2,972,394.96 = 1,187,124.48/x - Step 3: Cross multiply
2,153,997.24x = 2,972,394.96 × 1,187,124.48 - Step 4: Simplify right side
2,153,997.24x = 3,528,602,821,244.62 - Step 5: Solve for x
x = 3,528,602,821,244.62/2,153,997.24 - Step 6: Final answer
x = 1,638,164.97
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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.