Finding the Fourth Proportional to 512,438.10, 768,657.15 and 475,113.30
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Solution
The fourth proportional to 512,438.10, 768,657.15 and 475,113.30 is: 712,669.95
Step by Step Solution
- Step 1: Write the proportion equation
512,438.10 : 768,657.15 = 475,113.30 : x - Step 2: Convert to fraction form
512,438.10/768,657.15 = 475,113.30/x - Step 3: Cross multiply
512,438.10x = 768,657.15 × 475,113.30 - Step 4: Simplify right side
512,438.10x = 365,199,235,105.10 - Step 5: Solve for x
x = 365,199,235,105.10/512,438.10 - Step 6: Final answer
x = 712,669.95
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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.