Finding the Fourth Proportional to 2,378,926.81, 3,282,910.68 and 1,291,198.33
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Solution
The fourth proportional to 2,378,926.81, 3,282,910.68 and 1,291,198.33 is: 1,781,849.18
Step by Step Solution
- Step 1: Write the proportion equation
2,378,926.81 : 3,282,910.68 = 1,291,198.33 : x - Step 2: Convert to fraction form
2,378,926.81/3,282,910.68 = 1,291,198.33/x - Step 3: Cross multiply
2,378,926.81x = 3,282,910.68 × 1,291,198.33 - Step 4: Simplify right side
2,378,926.81x = 4,238,888,784,189.88 - Step 5: Solve for x
x = 4,238,888,784,189.88/2,378,926.81 - Step 6: Final answer
x = 1,781,849.18
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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.