Finding the Fourth Proportional to 1,972,963.87, 2,721,937.39 and 1,198,302.49
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Solution
The fourth proportional to 1,972,963.87, 2,721,937.39 and 1,198,302.49 is: 1,653,200.25
Step by Step Solution
- Step 1: Write the proportion equation
1,972,963.87 : 2,721,937.39 = 1,198,302.49 : x - Step 2: Convert to fraction form
1,972,963.87/2,721,937.39 = 1,198,302.49/x - Step 3: Cross multiply
1,972,963.87x = 2,721,937.39 × 1,198,302.49 - Step 4: Simplify right side
1,972,963.87x = 3,261,704,352,467.77 - Step 5: Solve for x
x = 3,261,704,352,467.77/1,972,963.87 - Step 6: Final answer
x = 1,653,200.25
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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.