Finding the Fourth Proportional to 2,167,346.84, 2,990,986.97 and 1,237,035.92
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Solution
The fourth proportional to 2,167,346.84, 2,990,986.97 and 1,237,035.92 is: 1,707,137.15
Step by Step Solution
- Step 1: Write the proportion equation
2,167,346.84 : 2,990,986.97 = 1,237,035.92 : x - Step 2: Convert to fraction form
2,167,346.84/2,990,986.97 = 1,237,035.92/x - Step 3: Cross multiply
2,167,346.84x = 2,990,986.97 × 1,237,035.92 - Step 4: Simplify right side
2,167,346.84x = 3,699,958,297,001.85 - Step 5: Solve for x
x = 3,699,958,297,001.85/2,167,346.84 - Step 6: Final answer
x = 1,707,137.15
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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.