Finding the Fourth Proportional to 1,286,195.60, 1,774,954.68 and 713,288.72
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Solution
The fourth proportional to 1,286,195.60, 1,774,954.68 and 713,288.72 is: 984,341.07
Step by Step Solution
- Step 1: Write the proportion equation
1,286,195.60 : 1,774,954.68 = 713,288.72 : x - Step 2: Convert to fraction form
1,286,195.60/1,774,954.68 = 713,288.72/x - Step 3: Cross multiply
1,286,195.60x = 1,774,954.68 × 713,288.72 - Step 4: Simplify right side
1,286,195.60x = 1,266,055,151,755.21 - Step 5: Solve for x
x = 1,266,055,151,755.21/1,286,195.60 - Step 6: Final answer
x = 984,341.07
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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.