Finding the Fourth Proportional to 1,398,371.07, 1,928,655.76 and 957,107.19
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Solution
The fourth proportional to 1,398,371.07, 1,928,655.76 and 957,107.19 is: 1,320,057.55
Step by Step Solution
- Step 1: Write the proportion equation
1,398,371.07 : 1,928,655.76 = 957,107.19 : x - Step 2: Convert to fraction form
1,398,371.07/1,928,655.76 = 957,107.19/x - Step 3: Cross multiply
1,398,371.07x = 1,928,655.76 × 957,107.19 - Step 4: Simplify right side
1,398,371.07x = 1,845,930,294,930.91 - Step 5: Solve for x
x = 1,845,930,294,930.91/1,398,371.07 - Step 6: Final answer
x = 1,320,057.55
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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.