Finding the Fourth Proportional to 1,040,159.40, 1,560,239.10 and 872,197.80
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Solution
The fourth proportional to 1,040,159.40, 1,560,239.10 and 872,197.80 is: 1,308,296.70
Step by Step Solution
- Step 1: Write the proportion equation
1,040,159.40 : 1,560,239.10 = 872,197.80 : x - Step 2: Convert to fraction form
1,040,159.40/1,560,239.10 = 872,197.80/x - Step 3: Cross multiply
1,040,159.40x = 1,560,239.10 × 872,197.80 - Step 4: Simplify right side
1,040,159.40x = 1,360,837,110,493.98 - Step 5: Solve for x
x = 1,360,837,110,493.98/1,040,159.40 - Step 6: Final answer
x = 1,308,296.70
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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.