Finding the Fourth Proportional to 2,986,178.40, 4,120,748.64 and 1,696,839.84
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Solution
The fourth proportional to 2,986,178.40, 4,120,748.64 and 1,696,839.84 is: 2,341,538.09
Step by Step Solution
- Step 1: Write the proportion equation
2,986,178.40 : 4,120,748.64 = 1,696,839.84 : x - Step 2: Convert to fraction form
2,986,178.40/4,120,748.64 = 1,696,839.84/x - Step 3: Cross multiply
2,986,178.40x = 4,120,748.64 × 1,696,839.84 - Step 4: Simplify right side
2,986,178.40x = 6,992,250,462,977.82 - Step 5: Solve for x
x = 6,992,250,462,977.82/2,986,178.40 - Step 6: Final answer
x = 2,341,538.09
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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.