Finding the Fourth Proportional to 769,792.84, 1,062,271.18 and 425,608.84
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Solution
The fourth proportional to 769,792.84, 1,062,271.18 and 425,608.84 is: 587,316.46
Step by Step Solution
- Step 1: Write the proportion equation
769,792.84 : 1,062,271.18 = 425,608.84 : x - Step 2: Convert to fraction form
769,792.84/1,062,271.18 = 425,608.84/x - Step 3: Cross multiply
769,792.84x = 1,062,271.18 × 425,608.84 - Step 4: Simplify right side
769,792.84x = 452,112,004,685.23 - Step 5: Solve for x
x = 452,112,004,685.23/769,792.84 - Step 6: Final answer
x = 587,316.46
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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.