Finding the Fourth Proportional to 823,535.36, 1,136,317.28 and 517,434.40
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Solution
The fourth proportional to 823,535.36, 1,136,317.28 and 517,434.40 is: 713,957.99
Step by Step Solution
- Step 1: Write the proportion equation
823,535.36 : 1,136,317.28 = 517,434.40 : x - Step 2: Convert to fraction form
823,535.36/1,136,317.28 = 517,434.40/x - Step 3: Cross multiply
823,535.36x = 1,136,317.28 × 517,434.40 - Step 4: Simplify right side
823,535.36x = 587,969,649,986.43 - Step 5: Solve for x
x = 587,969,649,986.43/823,535.36 - Step 6: Final answer
x = 713,957.99
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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.