Finding the Fourth Proportional to 1,222,235.43, 1,686,652.47 and 678,357.18
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Solution
The fourth proportional to 1,222,235.43, 1,686,652.47 and 678,357.18 is: 936,114.92
Step by Step Solution
- Step 1: Write the proportion equation
1,222,235.43 : 1,686,652.47 = 678,357.18 : x - Step 2: Convert to fraction form
1,222,235.43/1,686,652.47 = 678,357.18/x - Step 3: Cross multiply
1,222,235.43x = 1,686,652.47 × 678,357.18 - Step 4: Simplify right side
1,222,235.43x = 1,144,152,813,189.23 - Step 5: Solve for x
x = 1,144,152,813,189.23/1,222,235.43 - Step 6: Final answer
x = 936,114.92
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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.