Finding the Fourth Proportional to 1,969,782.76, 2,718,341.80 and 1,110,342.79
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Solution
The fourth proportional to 1,969,782.76, 2,718,341.80 and 1,110,342.79 is: 1,532,296.49
Step by Step Solution
- Step 1: Write the proportion equation
1,969,782.76 : 2,718,341.80 = 1,110,342.79 : x - Step 2: Convert to fraction form
1,969,782.76/2,718,341.80 = 1,110,342.79/x - Step 3: Cross multiply
1,969,782.76x = 2,718,341.80 × 1,110,342.79 - Step 4: Simplify right side
1,969,782.76x = 3,018,291,212,977.70 - Step 5: Solve for x
x = 3,018,291,212,977.70/1,969,782.76 - Step 6: Final answer
x = 1,532,296.49
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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.