Finding the Fourth Proportional to 3,390,289.40, 5,086,090.20 and 994,212.20
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Solution
The fourth proportional to 3,390,289.40, 5,086,090.20 and 994,212.20 is: 1,491,510.70
Step by Step Solution
- Step 1: Write the proportion equation
3,390,289.40 : 5,086,090.20 = 994,212.20 : x - Step 2: Convert to fraction form
3,390,289.40/5,086,090.20 = 994,212.20/x - Step 3: Cross multiply
3,390,289.40x = 5,086,090.20 × 994,212.20 - Step 4: Simplify right side
3,390,289.40x = 5,056,652,927,140.44 - Step 5: Solve for x
x = 5,056,652,927,140.44/3,390,289.40 - Step 6: Final answer
x = 1,491,510.70
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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.