Finding the Fourth Proportional to 557,625.77, 770,657.79 and 421,616.24
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Solution
The fourth proportional to 557,625.77, 770,657.79 and 421,616.24 is: 582,687.99
Step by Step Solution
- Step 1: Write the proportion equation
557,625.77 : 770,657.79 = 421,616.24 : x - Step 2: Convert to fraction form
557,625.77/770,657.79 = 421,616.24/x - Step 3: Cross multiply
557,625.77x = 770,657.79 × 421,616.24 - Step 4: Simplify right side
557,625.77x = 324,921,840,364.25 - Step 5: Solve for x
x = 324,921,840,364.25/557,625.77 - Step 6: Final answer
x = 582,687.99
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1.5x scale
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.