Finding the Fourth Proportional to 4,086,817.20, 6,119,728.20 and 3,240,010.80
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Solution
The fourth proportional to 4,086,817.20, 6,119,728.20 and 3,240,010.80 is: 4,851,693.75
Step by Step Solution
- Step 1: Write the proportion equation
4,086,817.20 : 6,119,728.20 = 3,240,010.80 : x - Step 2: Convert to fraction form
4,086,817.20/6,119,728.20 = 3,240,010.80/x - Step 3: Cross multiply
4,086,817.20x = 6,119,728.20 × 3,240,010.80 - Step 4: Simplify right side
4,086,817.20x = 19,827,985,461,064.56 - Step 5: Solve for x
x = 19,827,985,461,064.56/4,086,817.20 - Step 6: Final answer
x = 4,851,693.75
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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.