Finding the Fourth Proportional to 823,489.97, 1,136,415.98 and 460,913.81
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Solution
The fourth proportional to 823,489.97, 1,136,415.98 and 460,913.81 is: 636,060.97
Step by Step Solution
- Step 1: Write the proportion equation
823,489.97 : 1,136,415.98 = 460,913.81 : x - Step 2: Convert to fraction form
823,489.97/1,136,415.98 = 460,913.81/x - Step 3: Cross multiply
823,489.97x = 1,136,415.98 × 460,913.81 - Step 4: Simplify right side
823,489.97x = 523,789,823,080.01 - Step 5: Solve for x
x = 523,789,823,080.01/823,489.97 - Step 6: Final answer
x = 636,060.97
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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.