Finding the Fourth Proportional to 2,157,783.57, 2,977,726.62 and 1,190,913.84
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Solution
The fourth proportional to 2,157,783.57, 2,977,726.62 and 1,190,913.84 is: 1,643,452.98
Step by Step Solution
- Step 1: Write the proportion equation
2,157,783.57 : 2,977,726.62 = 1,190,913.84 : x - Step 2: Convert to fraction form
2,157,783.57/2,977,726.62 = 1,190,913.84/x - Step 3: Cross multiply
2,157,783.57x = 2,977,726.62 × 1,190,913.84 - Step 4: Simplify right side
2,157,783.57x = 3,546,215,843,494.42 - Step 5: Solve for x
x = 3,546,215,843,494.42/2,157,783.57 - Step 6: Final answer
x = 1,643,452.98
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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.