Finding the Fourth Proportional to 1,149,379.92, 1,586,030.76 and 640,129.68
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Solution
The fourth proportional to 1,149,379.92, 1,586,030.76 and 640,129.68 is: 883,315.73
Step by Step Solution
- Step 1: Write the proportion equation
1,149,379.92 : 1,586,030.76 = 640,129.68 : x - Step 2: Convert to fraction form
1,149,379.92/1,586,030.76 = 640,129.68/x - Step 3: Cross multiply
1,149,379.92x = 1,586,030.76 × 640,129.68 - Step 4: Simplify right side
1,149,379.92x = 1,015,265,362,868.96 - Step 5: Solve for x
x = 1,015,265,362,868.96/1,149,379.92 - Step 6: Final answer
x = 883,315.73
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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.