Finding the Fourth Proportional to 1,639,026.10, 2,261,690.49 and 913,805.74
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Solution
The fourth proportional to 1,639,026.10, 2,261,690.49 and 913,805.74 is: 1,260,959.63
Step by Step Solution
- Step 1: Write the proportion equation
1,639,026.10 : 2,261,690.49 = 913,805.74 : x - Step 2: Convert to fraction form
1,639,026.10/2,261,690.49 = 913,805.74/x - Step 3: Cross multiply
1,639,026.10x = 2,261,690.49 × 913,805.74 - Step 4: Simplify right side
1,639,026.10x = 2,066,745,751,865.41 - Step 5: Solve for x
x = 2,066,745,751,865.41/1,639,026.10 - Step 6: Final answer
x = 1,260,959.63
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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.