Finding the Fourth Proportional to 857,605.60, 1,285,486.80 and 324,920.80
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Solution
The fourth proportional to 857,605.60, 1,285,486.80 and 324,920.80 is: 487,032.03
Step by Step Solution
- Step 1: Write the proportion equation
857,605.60 : 1,285,486.80 = 324,920.80 : x - Step 2: Convert to fraction form
857,605.60/1,285,486.80 = 324,920.80/x - Step 3: Cross multiply
857,605.60x = 1,285,486.80 × 324,920.80 - Step 4: Simplify right side
857,605.60x = 417,681,399,445.44 - Step 5: Solve for x
x = 417,681,399,445.44/857,605.60 - Step 6: Final answer
x = 487,032.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.