Finding the Fourth Proportional to 1,207,860.91, 1,811,744.08 and 409,142.45
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Solution
The fourth proportional to 1,207,860.91, 1,811,744.08 and 409,142.45 is: 613,697.66
Step by Step Solution
- Step 1: Write the proportion equation
1,207,860.91 : 1,811,744.08 = 409,142.45 : x - Step 2: Convert to fraction form
1,207,860.91/1,811,744.08 = 409,142.45/x - Step 3: Cross multiply
1,207,860.91x = 1,811,744.08 × 409,142.45 - Step 4: Simplify right side
1,207,860.91x = 741,261,411,664.20 - Step 5: Solve for x
x = 741,261,411,664.20/1,207,860.91 - Step 6: Final answer
x = 613,697.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.