Finding the Fourth Proportional to 815,744.82, 1,223,617.59 and 310,188.99
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Solution
The fourth proportional to 815,744.82, 1,223,617.59 and 310,188.99 is: 465,283.63
Step by Step Solution
- Step 1: Write the proportion equation
815,744.82 : 1,223,617.59 = 310,188.99 : x - Step 2: Convert to fraction form
815,744.82/1,223,617.59 = 310,188.99/x - Step 3: Cross multiply
815,744.82x = 1,223,617.59 × 310,188.99 - Step 4: Simplify right side
815,744.82x = 379,552,708,976.90 - Step 5: Solve for x
x = 379,552,708,976.90/815,744.82 - Step 6: Final answer
x = 465,283.63
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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.