Finding the Fourth Proportional to 1,222,921.14, 1,687,679.73 and 706,657.92
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Solution
The fourth proportional to 1,222,921.14, 1,687,679.73 and 706,657.92 is: 975,215.99
Step by Step Solution
- Step 1: Write the proportion equation
1,222,921.14 : 1,687,679.73 = 706,657.92 : x - Step 2: Convert to fraction form
1,222,921.14/1,687,679.73 = 706,657.92/x - Step 3: Cross multiply
1,222,921.14x = 1,687,679.73 × 706,657.92 - Step 4: Simplify right side
1,222,921.14x = 1,192,612,247,627.96 - Step 5: Solve for x
x = 1,192,612,247,627.96/1,222,921.14 - Step 6: Final answer
x = 975,215.99
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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.