Finding the Fourth Proportional to 823,680.28, 1,136,670.08 and 461,107.12
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Solution
The fourth proportional to 823,680.28, 1,136,670.08 and 461,107.12 is: 636,322.95
Step by Step Solution
- Step 1: Write the proportion equation
823,680.28 : 1,136,670.08 = 461,107.12 : x - Step 2: Convert to fraction form
823,680.28/1,136,670.08 = 461,107.12/x - Step 3: Cross multiply
823,680.28x = 1,136,670.08 × 461,107.12 - Step 4: Simplify right side
823,680.28x = 524,126,666,978.97 - Step 5: Solve for x
x = 524,126,666,978.97/823,680.28 - Step 6: Final answer
x = 636,322.95
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1.5x scale
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.