Finding the Fourth Proportional to 1,915,115.21, 2,642,837.49 and 1,043,930.84
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Solution
The fourth proportional to 1,915,115.21, 2,642,837.49 and 1,043,930.84 is: 1,440,612.83
Step by Step Solution
- Step 1: Write the proportion equation
1,915,115.21 : 2,642,837.49 = 1,043,930.84 : x - Step 2: Convert to fraction form
1,915,115.21/2,642,837.49 = 1,043,930.84/x - Step 3: Cross multiply
1,915,115.21x = 2,642,837.49 × 1,043,930.84 - Step 4: Simplify right side
1,915,115.21x = 2,758,939,547,705.00 - Step 5: Solve for x
x = 2,758,939,547,705.00/1,915,115.21 - Step 6: Final answer
x = 1,440,612.83
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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.