Finding the Fourth Proportional to 632,349.18, 872,648.64 and 345,863.12
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Solution
The fourth proportional to 632,349.18, 872,648.64 and 345,863.12 is: 477,294.80
Step by Step Solution
- Step 1: Write the proportion equation
632,349.18 : 872,648.64 = 345,863.12 : x - Step 2: Convert to fraction form
632,349.18/872,648.64 = 345,863.12/x - Step 3: Cross multiply
632,349.18x = 872,648.64 × 345,863.12 - Step 4: Simplify right side
632,349.18x = 301,816,976,930.91 - Step 5: Solve for x
x = 301,816,976,930.91/632,349.18 - Step 6: Final answer
x = 477,294.80
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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.