Finding the Fourth Proportional to 1,149,768.63, 1,586,729.75 and 640,471.23
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Solution
The fourth proportional to 1,149,768.63, 1,586,729.75 and 640,471.23 is: 883,877.61
Step by Step Solution
- Step 1: Write the proportion equation
1,149,768.63 : 1,586,729.75 = 640,471.23 : x - Step 2: Convert to fraction form
1,149,768.63/1,586,729.75 = 640,471.23/x - Step 3: Cross multiply
1,149,768.63x = 1,586,729.75 × 640,471.23 - Step 4: Simplify right side
1,149,768.63x = 1,016,254,751,457.74 - Step 5: Solve for x
x = 1,016,254,751,457.74/1,149,768.63 - Step 6: Final answer
x = 883,877.61
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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.