Finding the Fourth Proportional to 1,721,979.63, 2,376,272.26 and 947,538.05
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Solution
The fourth proportional to 1,721,979.63, 2,376,272.26 and 947,538.05 is: 1,307,569.70
Step by Step Solution
- Step 1: Write the proportion equation
1,721,979.63 : 2,376,272.26 = 947,538.05 : x - Step 2: Convert to fraction form
1,721,979.63/2,376,272.26 = 947,538.05/x - Step 3: Cross multiply
1,721,979.63x = 2,376,272.26 × 947,538.05 - Step 4: Simplify right side
1,721,979.63x = 2,251,608,383,509.49 - Step 5: Solve for x
x = 2,251,608,383,509.49/1,721,979.63 - Step 6: Final answer
x = 1,307,569.70
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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.