Finding the Fourth Proportional to 1,917,680.70, 2,646,527.67 and 1,102,148.40
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Solution
The fourth proportional to 1,917,680.70, 2,646,527.67 and 1,102,148.40 is: 1,521,038.53
Step by Step Solution
- Step 1: Write the proportion equation
1,917,680.70 : 2,646,527.67 = 1,102,148.40 : x - Step 2: Convert to fraction form
1,917,680.70/2,646,527.67 = 1,102,148.40/x - Step 3: Cross multiply
1,917,680.70x = 2,646,527.67 × 1,102,148.40 - Step 4: Simplify right side
1,917,680.70x = 2,916,866,237,046.23 - Step 5: Solve for x
x = 2,916,866,237,046.23/1,917,680.70 - Step 6: Final answer
x = 1,521,038.53
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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.