Finding the Fourth Proportional to 2,190,391.80, 3,285,587.70 and 1,434,564.60
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Solution
The fourth proportional to 2,190,391.80, 3,285,587.70 and 1,434,564.60 is: 2,151,846.90
Step by Step Solution
- Step 1: Write the proportion equation
2,190,391.80 : 3,285,587.70 = 1,434,564.60 : x - Step 2: Convert to fraction form
2,190,391.80/3,285,587.70 = 1,434,564.60/x - Step 3: Cross multiply
2,190,391.80x = 3,285,587.70 × 1,434,564.60 - Step 4: Simplify right side
2,190,391.80x = 4,713,387,804,615.42 - Step 5: Solve for x
x = 4,713,387,804,615.42/2,190,391.80 - Step 6: Final answer
x = 2,151,846.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.