Finding the Fourth Proportional to 984,815.70, 1,477,272.15 and 512,423.70
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Solution
The fourth proportional to 984,815.70, 1,477,272.15 and 512,423.70 is: 768,660.84
Step by Step Solution
- Step 1: Write the proportion equation
984,815.70 : 1,477,272.15 = 512,423.70 : x - Step 2: Convert to fraction form
984,815.70/1,477,272.15 = 512,423.70/x - Step 3: Cross multiply
984,815.70x = 1,477,272.15 × 512,423.70 - Step 4: Simplify right side
984,815.70x = 756,989,261,009.96 - Step 5: Solve for x
x = 756,989,261,009.96/984,815.70 - Step 6: Final answer
x = 768,660.84
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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.