Finding the Fourth Proportional to 725,888.25, 1,001,678.36 and 403,586.46
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Solution
The fourth proportional to 725,888.25, 1,001,678.36 and 403,586.46 is: 556,922.94
Step by Step Solution
- Step 1: Write the proportion equation
725,888.25 : 1,001,678.36 = 403,586.46 : x - Step 2: Convert to fraction form
725,888.25/1,001,678.36 = 403,586.46/x - Step 3: Cross multiply
725,888.25x = 1,001,678.36 × 403,586.46 - Step 4: Simplify right side
725,888.25x = 404,263,821,353.07 - Step 5: Solve for x
x = 404,263,821,353.07/725,888.25 - Step 6: Final answer
x = 556,922.94
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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.