Finding the Fourth Proportional to 819,187.38, 1,130,963.57 and 728,292.29
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Solution
The fourth proportional to 819,187.38, 1,130,963.57 and 728,292.29 is: 1,005,474.53
Step by Step Solution
- Step 1: Write the proportion equation
819,187.38 : 1,130,963.57 = 728,292.29 : x - Step 2: Convert to fraction form
819,187.38/1,130,963.57 = 728,292.29/x - Step 3: Cross multiply
819,187.38x = 1,130,963.57 × 728,292.29 - Step 4: Simplify right side
819,187.38x = 823,672,045,977.81 - Step 5: Solve for x
x = 823,672,045,977.81/819,187.38 - Step 6: Final answer
x = 1,005,474.53
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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.