Finding the Fourth Proportional to 556,113.70, 834,170.55 and 486,129.70
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Solution
The fourth proportional to 556,113.70, 834,170.55 and 486,129.70 is: 729,194.55
Step by Step Solution
- Step 1: Write the proportion equation
556,113.70 : 834,170.55 = 486,129.70 : x - Step 2: Convert to fraction form
556,113.70/834,170.55 = 486,129.70/x - Step 3: Cross multiply
556,113.70x = 834,170.55 × 486,129.70 - Step 4: Simplify right side
556,113.70x = 405,515,079,220.34 - Step 5: Solve for x
x = 405,515,079,220.34/556,113.70 - Step 6: Final answer
x = 729,194.55
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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.