Finding the Fourth Proportional to 984,903.20, 1,477,403.40 and 512,511.20
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Solution
The fourth proportional to 984,903.20, 1,477,403.40 and 512,511.20 is: 768,792.09
Step by Step Solution
- Step 1: Write the proportion equation
984,903.20 : 1,477,403.40 = 512,511.20 : x - Step 2: Convert to fraction form
984,903.20/1,477,403.40 = 512,511.20/x - Step 3: Cross multiply
984,903.20x = 1,477,403.40 × 512,511.20 - Step 4: Simplify right side
984,903.20x = 757,185,789,418.08 - Step 5: Solve for x
x = 757,185,789,418.08/984,903.20 - Step 6: Final answer
x = 768,792.09
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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.