Finding the Fourth Proportional to 2,157,773.81, 2,977,713.19 and 1,190,904.08
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Solution
The fourth proportional to 2,157,773.81, 2,977,713.19 and 1,190,904.08 is: 1,643,439.53
Step by Step Solution
- Step 1: Write the proportion equation
2,157,773.81 : 2,977,713.19 = 1,190,904.08 : x - Step 2: Convert to fraction form
2,157,773.81/2,977,713.19 = 1,190,904.08/x - Step 3: Cross multiply
2,157,773.81x = 2,977,713.19 × 1,190,904.08 - Step 4: Simplify right side
2,157,773.81x = 3,546,170,769,174.99 - Step 5: Solve for x
x = 3,546,170,769,174.99/2,157,773.81 - Step 6: Final answer
x = 1,643,439.53
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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.