Finding the Fourth Proportional to 725,987.13, 1,001,863.07 and 403,690.31
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Solution
The fourth proportional to 725,987.13, 1,001,863.07 and 403,690.31 is: 557,093.09
Step by Step Solution
- Step 1: Write the proportion equation
725,987.13 : 1,001,863.07 = 403,690.31 : x - Step 2: Convert to fraction form
725,987.13/1,001,863.07 = 403,690.31/x - Step 3: Cross multiply
725,987.13x = 1,001,863.07 × 403,690.31 - Step 4: Simplify right side
725,987.13x = 404,442,409,866.55 - Step 5: Solve for x
x = 404,442,409,866.55/725,987.13 - Step 6: Final answer
x = 557,093.09
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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.