Finding the Fourth Proportional to 1,979,113.99, 2,731,182.60 and 1,073,695.99
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Solution
The fourth proportional to 1,979,113.99, 2,731,182.60 and 1,073,695.99 is: 1,481,703.34
Step by Step Solution
- Step 1: Write the proportion equation
1,979,113.99 : 2,731,182.60 = 1,073,695.99 : x - Step 2: Convert to fraction form
1,979,113.99/2,731,182.60 = 1,073,695.99/x - Step 3: Cross multiply
1,979,113.99x = 2,731,182.60 × 1,073,695.99 - Step 4: Simplify right side
1,979,113.99x = 2,932,459,805,577.77 - Step 5: Solve for x
x = 2,932,459,805,577.77/1,979,113.99 - Step 6: Final answer
x = 1,481,703.34
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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.