Finding the Fourth Proportional to 1,358,139.28, 1,874,122.49 and 785,216.38
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Solution
The fourth proportional to 1,358,139.28, 1,874,122.49 and 785,216.38 is: 1,083,535.17
Step by Step Solution
- Step 1: Write the proportion equation
1,358,139.28 : 1,874,122.49 = 785,216.38 : x - Step 2: Convert to fraction form
1,358,139.28/1,874,122.49 = 785,216.38/x - Step 3: Cross multiply
1,358,139.28x = 1,874,122.49 × 785,216.38 - Step 4: Simplify right side
1,358,139.28x = 1,471,591,669,866.81 - Step 5: Solve for x
x = 1,471,591,669,866.81/1,358,139.28 - Step 6: Final answer
x = 1,083,535.17
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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.