Finding the Fourth Proportional to 1,915,115.13, 2,642,837.36 and 1,043,930.75
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Solution
The fourth proportional to 1,915,115.13, 2,642,837.36 and 1,043,930.75 is: 1,440,612.70
Step by Step Solution
- Step 1: Write the proportion equation
1,915,115.13 : 2,642,837.36 = 1,043,930.75 : x - Step 2: Convert to fraction form
1,915,115.13/2,642,837.36 = 1,043,930.75/x - Step 3: Cross multiply
1,915,115.13x = 2,642,837.36 × 1,043,930.75 - Step 4: Simplify right side
1,915,115.13x = 2,758,939,184,472.72 - Step 5: Solve for x
x = 2,758,939,184,472.72/1,915,115.13 - Step 6: Final answer
x = 1,440,612.70
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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.