Finding the Fourth Proportional to 730,623.75, 1,008,217.33 and 403,917.18
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Solution
The fourth proportional to 730,623.75, 1,008,217.33 and 403,917.18 is: 557,381.69
Step by Step Solution
- Step 1: Write the proportion equation
730,623.75 : 1,008,217.33 = 403,917.18 : x - Step 2: Convert to fraction form
730,623.75/1,008,217.33 = 403,917.18/x - Step 3: Cross multiply
730,623.75x = 1,008,217.33 × 403,917.18 - Step 4: Simplify right side
730,623.75x = 407,236,301,641.34 - Step 5: Solve for x
x = 407,236,301,641.34/730,623.75 - Step 6: Final answer
x = 557,381.69
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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.