Finding the Fourth Proportional to 1,225,757.97, 1,691,600.58 and 1,021,466.88
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Solution
The fourth proportional to 1,225,757.97, 1,691,600.58 and 1,021,466.88 is: 1,409,669.78
Step by Step Solution
- Step 1: Write the proportion equation
1,225,757.97 : 1,691,600.58 = 1,021,466.88 : x - Step 2: Convert to fraction form
1,225,757.97/1,691,600.58 = 1,021,466.88/x - Step 3: Cross multiply
1,225,757.97x = 1,691,600.58 × 1,021,466.88 - Step 4: Simplify right side
1,225,757.97x = 1,727,913,966,658.79 - Step 5: Solve for x
x = 1,727,913,966,658.79/1,225,757.97 - Step 6: Final answer
x = 1,409,669.78
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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.