Finding the Fourth Proportional to 1,237,883.49, 1,708,283.84 and 721,993.57
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Solution
The fourth proportional to 1,237,883.49, 1,708,283.84 and 721,993.57 is: 996,353.82
Step by Step Solution
- Step 1: Write the proportion equation
1,237,883.49 : 1,708,283.84 = 721,993.57 : x - Step 2: Convert to fraction form
1,237,883.49/1,708,283.84 = 721,993.57/x - Step 3: Cross multiply
1,237,883.49x = 1,708,283.84 × 721,993.57 - Step 4: Simplify right side
1,237,883.49x = 1,233,369,940,334.23 - Step 5: Solve for x
x = 1,233,369,940,334.23/1,237,883.49 - Step 6: Final answer
x = 996,353.82
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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.