Finding the Fourth Proportional to 770,212.94, 1,062,812.09 and 425,994.17
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Solution
The fourth proportional to 770,212.94, 1,062,812.09 and 425,994.17 is: 587,826.72
Step by Step Solution
- Step 1: Write the proportion equation
770,212.94 : 1,062,812.09 = 425,994.17 : x - Step 2: Convert to fraction form
770,212.94/1,062,812.09 = 425,994.17/x - Step 3: Cross multiply
770,212.94x = 1,062,812.09 × 425,994.17 - Step 4: Simplify right side
770,212.94x = 452,751,746,701.48 - Step 5: Solve for x
x = 452,751,746,701.48/770,212.94 - Step 6: Final answer
x = 587,826.72
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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.