Finding the Fourth Proportional to 1,976,573.09, 2,727,963.42 and 1,251,488.09
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Solution
The fourth proportional to 1,976,573.09, 2,727,963.42 and 1,251,488.09 is: 1,727,238.80
Step by Step Solution
- Step 1: Write the proportion equation
1,976,573.09 : 2,727,963.42 = 1,251,488.09 : x - Step 2: Convert to fraction form
1,976,573.09/2,727,963.42 = 1,251,488.09/x - Step 3: Cross multiply
1,976,573.09x = 2,727,963.42 × 1,251,488.09 - Step 4: Simplify right side
1,976,573.09x = 3,414,013,730,085.67 - Step 5: Solve for x
x = 3,414,013,730,085.67/1,976,573.09 - Step 6: Final answer
x = 1,727,238.80
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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.