Finding the Fourth Proportional to 3,485,181.40, 5,220,773.70 and 1,987,523.80
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Solution
The fourth proportional to 3,485,181.40, 5,220,773.70 and 1,987,523.80 is: 2,977,294.66
Step by Step Solution
- Step 1: Write the proportion equation
3,485,181.40 : 5,220,773.70 = 1,987,523.80 : x - Step 2: Convert to fraction form
3,485,181.40/5,220,773.70 = 1,987,523.80/x - Step 3: Cross multiply
3,485,181.40x = 5,220,773.70 × 1,987,523.80 - Step 4: Simplify right side
3,485,181.40x = 10,376,411,983,164.06 - Step 5: Solve for x
x = 10,376,411,983,164.06/3,485,181.40 - Step 6: Final answer
x = 2,977,294.66
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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.