Finding the Fourth Proportional to 984,878.70, 1,477,366.65 and 512,486.70
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Solution
The fourth proportional to 984,878.70, 1,477,366.65 and 512,486.70 is: 768,755.34
Step by Step Solution
- Step 1: Write the proportion equation
984,878.70 : 1,477,366.65 = 512,486.70 : x - Step 2: Convert to fraction form
984,878.70/1,477,366.65 = 512,486.70/x - Step 3: Cross multiply
984,878.70x = 1,477,366.65 × 512,486.70 - Step 4: Simplify right side
984,878.70x = 757,130,759,148.56 - Step 5: Solve for x
x = 757,130,759,148.56/984,878.70 - Step 6: Final answer
x = 768,755.34
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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.