Finding the Fourth Proportional to 512,912.10, 769,368.15 and 488,417.70
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Solution
The fourth proportional to 512,912.10, 769,368.15 and 488,417.70 is: 732,626.55
Step by Step Solution
- Step 1: Write the proportion equation
512,912.10 : 769,368.15 = 488,417.70 : x - Step 2: Convert to fraction form
512,912.10/769,368.15 = 488,417.70/x - Step 3: Cross multiply
512,912.10x = 769,368.15 × 488,417.70 - Step 4: Simplify right side
512,912.10x = 375,773,022,276.26 - Step 5: Solve for x
x = 375,773,022,276.26/512,912.10 - Step 6: Final answer
x = 732,626.55
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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.