Finding the Fourth Proportional to 2,230,272.11, 3,077,715.60 and 1,312,555.25
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Solution
The fourth proportional to 2,230,272.11, 3,077,715.60 and 1,312,555.25 is: 1,811,290.99
Step by Step Solution
- Step 1: Write the proportion equation
2,230,272.11 : 3,077,715.60 = 1,312,555.25 : x - Step 2: Convert to fraction form
2,230,272.11/3,077,715.60 = 1,312,555.25/x - Step 3: Cross multiply
2,230,272.11x = 3,077,715.60 × 1,312,555.25 - Step 4: Simplify right side
2,230,272.11x = 4,039,671,768,786.90 - Step 5: Solve for x
x = 4,039,671,768,786.90/2,230,272.11 - Step 6: Final answer
x = 1,811,290.99
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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.