Finding the Fourth Proportional to 1,418,077.75, 2,127,116.64 and 420,805.75
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Solution
The fourth proportional to 1,418,077.75, 2,127,116.64 and 420,805.75 is: 631,208.63
Step by Step Solution
- Step 1: Write the proportion equation
1,418,077.75 : 2,127,116.64 = 420,805.75 : x - Step 2: Convert to fraction form
1,418,077.75/2,127,116.64 = 420,805.75/x - Step 3: Cross multiply
1,418,077.75x = 2,127,116.64 × 420,805.75 - Step 4: Simplify right side
1,418,077.75x = 895,102,913,032.68 - Step 5: Solve for x
x = 895,102,913,032.68/1,418,077.75 - Step 6: Final answer
x = 631,208.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.