Finding the Fourth Proportional to 1,910,121.56, 2,634,618.96 and 1,621,656.20
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Solution
The fourth proportional to 1,910,121.56, 2,634,618.96 and 1,621,656.20 is: 2,236,740.46
Step by Step Solution
- Step 1: Write the proportion equation
1,910,121.56 : 2,634,618.96 = 1,621,656.20 : x - Step 2: Convert to fraction form
1,910,121.56/2,634,618.96 = 1,621,656.20/x - Step 3: Cross multiply
1,910,121.56x = 2,634,618.96 × 1,621,656.20 - Step 4: Simplify right side
1,910,121.56x = 4,272,446,171,121.55 - Step 5: Solve for x
x = 4,272,446,171,121.55/1,910,121.56 - Step 6: Final answer
x = 2,236,740.46
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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.