Finding the Fourth Proportional to 534,878.10, 738,035.01 and 343,847.70
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Solution
The fourth proportional to 534,878.10, 738,035.01 and 343,847.70 is: 474,447.62
Step by Step Solution
- Step 1: Write the proportion equation
534,878.10 : 738,035.01 = 343,847.70 : x - Step 2: Convert to fraction form
534,878.10/738,035.01 = 343,847.70/x - Step 3: Cross multiply
534,878.10x = 738,035.01 × 343,847.70 - Step 4: Simplify right side
534,878.10x = 253,771,640,707.98 - Step 5: Solve for x
x = 253,771,640,707.98/534,878.10 - Step 6: Final answer
x = 474,447.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.