Finding the Fourth Proportional to 1,418,167.20, 1,959,619.36 and 1,078,044.96
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Solution
The fourth proportional to 1,418,167.20, 1,959,619.36 and 1,078,044.96 is: 1,489,639.43
Step by Step Solution
- Step 1: Write the proportion equation
1,418,167.20 : 1,959,619.36 = 1,078,044.96 : x - Step 2: Convert to fraction form
1,418,167.20/1,959,619.36 = 1,078,044.96/x - Step 3: Cross multiply
1,418,167.20x = 1,959,619.36 × 1,078,044.96 - Step 4: Simplify right side
1,418,167.20x = 2,112,557,774,566.43 - Step 5: Solve for x
x = 2,112,557,774,566.43/1,418,167.20 - Step 6: Final answer
x = 1,489,639.43
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.