Finding the Fourth Proportional to 638,551.26, 881,240.45 and 352,070.91
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Solution
The fourth proportional to 638,551.26, 881,240.45 and 352,070.91 is: 485,879.75
Step by Step Solution
- Step 1: Write the proportion equation
638,551.26 : 881,240.45 = 352,070.91 : x - Step 2: Convert to fraction form
638,551.26/881,240.45 = 352,070.91/x - Step 3: Cross multiply
638,551.26x = 881,240.45 × 352,070.91 - Step 4: Simplify right side
638,551.26x = 310,259,125,399.96 - Step 5: Solve for x
x = 310,259,125,399.96/638,551.26 - Step 6: Final answer
x = 485,879.75
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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.