Finding the Fourth Proportional to 2,642,787.09, 3,646,948.73 and 1,435,537.17
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Solution
The fourth proportional to 2,642,787.09, 3,646,948.73 and 1,435,537.17 is: 1,980,988.36
Step by Step Solution
- Step 1: Write the proportion equation
2,642,787.09 : 3,646,948.73 = 1,435,537.17 : x - Step 2: Convert to fraction form
2,642,787.09/3,646,948.73 = 1,435,537.17/x - Step 3: Cross multiply
2,642,787.09x = 3,646,948.73 × 1,435,537.17 - Step 4: Simplify right side
2,642,787.09x = 5,235,330,451,821.61 - Step 5: Solve for x
x = 5,235,330,451,821.61/2,642,787.09 - Step 6: Final answer
x = 1,980,988.36
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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.