Finding the Fourth Proportional to 2,157,327.90, 2,977,704.63 and 1,252,201.50
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Solution
The fourth proportional to 2,157,327.90, 2,977,704.63 and 1,252,201.50 is: 1,728,381.77
Step by Step Solution
- Step 1: Write the proportion equation
2,157,327.90 : 2,977,704.63 = 1,252,201.50 : x - Step 2: Convert to fraction form
2,157,327.90/2,977,704.63 = 1,252,201.50/x - Step 3: Cross multiply
2,157,327.90x = 2,977,704.63 × 1,252,201.50 - Step 4: Simplify right side
2,157,327.90x = 3,728,686,204,242.95 - Step 5: Solve for x
x = 3,728,686,204,242.95/2,157,327.90 - Step 6: Final answer
x = 1,728,381.77
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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.