Finding the Fourth Proportional to 1,040,883.79, 1,560,177.91 and 680,905.21
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Solution
The fourth proportional to 1,040,883.79, 1,560,177.91 and 680,905.21 is: 1,020,606.99
Step by Step Solution
- Step 1: Write the proportion equation
1,040,883.79 : 1,560,177.91 = 680,905.21 : x - Step 2: Convert to fraction form
1,040,883.79/1,560,177.91 = 680,905.21/x - Step 3: Cross multiply
1,040,883.79x = 1,560,177.91 × 680,905.21 - Step 4: Simplify right side
1,040,883.79x = 1,062,333,267,445.91 - Step 5: Solve for x
x = 1,062,333,267,445.91/1,040,883.79 - Step 6: Final answer
x = 1,020,606.99
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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.