Finding the Fourth Proportional to 1,969,781.91, 2,718,340.64 and 1,110,341.94
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Solution
The fourth proportional to 1,969,781.91, 2,718,340.64 and 1,110,341.94 is: 1,532,295.33
Step by Step Solution
- Step 1: Write the proportion equation
1,969,781.91 : 2,718,340.64 = 1,110,341.94 : x - Step 2: Convert to fraction form
1,969,781.91/2,718,340.64 = 1,110,341.94/x - Step 3: Cross multiply
1,969,781.91x = 2,718,340.64 × 1,110,341.94 - Step 4: Simplify right side
1,969,781.91x = 3,018,287,628,029.90 - Step 5: Solve for x
x = 3,018,287,628,029.90/1,969,781.91 - Step 6: Final answer
x = 1,532,295.33
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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.