Finding the Fourth Proportional to 438,963.66, 605,761.08 and 245,370.42
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Solution
The fourth proportional to 438,963.66, 605,761.08 and 245,370.42 is: 338,606.28
Step by Step Solution
- Step 1: Write the proportion equation
438,963.66 : 605,761.08 = 245,370.42 : x - Step 2: Convert to fraction form
438,963.66/605,761.08 = 245,370.42/x - Step 3: Cross multiply
438,963.66x = 605,761.08 × 245,370.42 - Step 4: Simplify right side
438,963.66x = 148,635,850,619.25 - Step 5: Solve for x
x = 148,635,850,619.25/438,963.66 - Step 6: Final answer
x = 338,606.28
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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.