Finding the Fourth Proportional to 1,618,415.56, 2,234,169.30 and 939,220.84
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Solution
The fourth proportional to 1,618,415.56, 2,234,169.30 and 939,220.84 is: 1,296,563.39
Step by Step Solution
- Step 1: Write the proportion equation
1,618,415.56 : 2,234,169.30 = 939,220.84 : x - Step 2: Convert to fraction form
1,618,415.56/2,234,169.30 = 939,220.84/x - Step 3: Cross multiply
1,618,415.56x = 2,234,169.30 × 939,220.84 - Step 4: Simplify right side
1,618,415.56x = 2,098,378,366,648.21 - Step 5: Solve for x
x = 2,098,378,366,648.21/1,618,415.56 - Step 6: Final answer
x = 1,296,563.39
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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.