Finding the Fourth Proportional to 1,661,426.86, 2,492,139.99 and 399,254.49
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Solution
The fourth proportional to 1,661,426.86, 2,492,139.99 and 399,254.49 is: 598,881.66
Step by Step Solution
- Step 1: Write the proportion equation
1,661,426.86 : 2,492,139.99 = 399,254.49 : x - Step 2: Convert to fraction form
1,661,426.86/2,492,139.99 = 399,254.49/x - Step 3: Cross multiply
1,661,426.86x = 2,492,139.99 × 399,254.49 - Step 4: Simplify right side
1,661,426.86x = 994,998,080,716.06 - Step 5: Solve for x
x = 994,998,080,716.06/1,661,426.86 - Step 6: Final answer
x = 598,881.66
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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.