Finding the Fourth Proportional to 819,696.99, 1,131,263.16 and 612,605.70
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Solution
The fourth proportional to 819,696.99, 1,131,263.16 and 612,605.70 is: 845,456.64
Step by Step Solution
- Step 1: Write the proportion equation
819,696.99 : 1,131,263.16 = 612,605.70 : x - Step 2: Convert to fraction form
819,696.99/1,131,263.16 = 612,605.70/x - Step 3: Cross multiply
819,696.99x = 1,131,263.16 × 612,605.70 - Step 4: Simplify right side
819,696.99x = 693,018,260,016.01 - Step 5: Solve for x
x = 693,018,260,016.01/819,696.99 - Step 6: Final answer
x = 845,456.64
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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.