Finding the Fourth Proportional to 823,776.30, 1,136,724.74 and 456,243.81
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Solution
The fourth proportional to 823,776.30, 1,136,724.74 and 456,243.81 is: 629,568.52
Step by Step Solution
- Step 1: Write the proportion equation
823,776.30 : 1,136,724.74 = 456,243.81 : x - Step 2: Convert to fraction form
823,776.30/1,136,724.74 = 456,243.81/x - Step 3: Cross multiply
823,776.30x = 1,136,724.74 × 456,243.81 - Step 4: Simplify right side
823,776.30x = 518,623,620,615.24 - Step 5: Solve for x
x = 518,623,620,615.24/823,776.30 - Step 6: Final answer
x = 629,568.52
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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.