Finding the Fourth Proportional to 2,154,770.07, 2,973,605.62 and 1,187,934.96
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Solution
The fourth proportional to 2,154,770.07, 2,973,605.62 and 1,187,934.96 is: 1,639,362.88
Step by Step Solution
- Step 1: Write the proportion equation
2,154,770.07 : 2,973,605.62 = 1,187,934.96 : x - Step 2: Convert to fraction form
2,154,770.07/2,973,605.62 = 1,187,934.96/x - Step 3: Cross multiply
2,154,770.07x = 2,973,605.62 × 1,187,934.96 - Step 4: Simplify right side
2,154,770.07x = 3,532,450,081,988.56 - Step 5: Solve for x
x = 3,532,450,081,988.56/2,154,770.07 - Step 6: Final answer
x = 1,639,362.88
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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.