Finding the Fourth Proportional to 984,869.70, 1,477,304.55 and 512,477.70
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Solution
The fourth proportional to 984,869.70, 1,477,304.55 and 512,477.70 is: 768,716.55
Step by Step Solution
- Step 1: Write the proportion equation
984,869.70 : 1,477,304.55 = 512,477.70 : x - Step 2: Convert to fraction form
984,869.70/1,477,304.55 = 512,477.70/x - Step 3: Cross multiply
984,869.70x = 1,477,304.55 × 512,477.70 - Step 4: Simplify right side
984,869.70x = 757,085,637,983.54 - Step 5: Solve for x
x = 757,085,637,983.54/984,869.70 - Step 6: Final answer
x = 768,716.55
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1.5x scale
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.