Finding the Fourth Proportional to 1,357,912.09, 1,873,139.37 and 847,728.73
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Solution
The fourth proportional to 1,357,912.09, 1,873,139.37 and 847,728.73 is: 1,169,379.13
Step by Step Solution
- Step 1: Write the proportion equation
1,357,912.09 : 1,873,139.37 = 847,728.73 : x - Step 2: Convert to fraction form
1,357,912.09/1,873,139.37 = 847,728.73/x - Step 3: Cross multiply
1,357,912.09x = 1,873,139.37 × 847,728.73 - Step 4: Simplify right side
1,357,912.09x = 1,587,914,058,183.44 - Step 5: Solve for x
x = 1,587,914,058,183.44/1,357,912.09 - Step 6: Final answer
x = 1,169,379.13
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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.