Finding the Fourth Proportional to 1,028,791.54, 1,420,104.99 and 837,472.78
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Solution
The fourth proportional to 1,028,791.54, 1,420,104.99 and 837,472.78 is: 1,156,015.80
Step by Step Solution
- Step 1: Write the proportion equation
1,028,791.54 : 1,420,104.99 = 837,472.78 : x - Step 2: Convert to fraction form
1,028,791.54/1,420,104.99 = 837,472.78/x - Step 3: Cross multiply
1,028,791.54x = 1,420,104.99 × 837,472.78 - Step 4: Simplify right side
1,028,791.54x = 1,189,299,273,867.17 - Step 5: Solve for x
x = 1,189,299,273,867.17/1,028,791.54 - Step 6: Final answer
x = 1,156,015.80
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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.