Finding the Fourth Proportional to 823,642.49, 1,136,650.39 and 461,064.18
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Solution
The fourth proportional to 823,642.49, 1,136,650.39 and 461,064.18 is: 636,281.87
Step by Step Solution
- Step 1: Write the proportion equation
823,642.49 : 1,136,650.39 = 461,064.18 : x - Step 2: Convert to fraction form
823,642.49/1,136,650.39 = 461,064.18/x - Step 3: Cross multiply
823,642.49x = 1,136,650.39 × 461,064.18 - Step 4: Simplify right side
823,642.49x = 524,068,783,121.81 - Step 5: Solve for x
x = 524,068,783,121.81/823,642.49 - Step 6: Final answer
x = 636,281.87
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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.