Finding the Fourth Proportional to 1,161,695.86, 1,603,313.49 and 916,117.63
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Solution
The fourth proportional to 1,161,695.86, 1,603,313.49 and 916,117.63 is: 1,264,378.92
Step by Step Solution
- Step 1: Write the proportion equation
1,161,695.86 : 1,603,313.49 = 916,117.63 : x - Step 2: Convert to fraction form
1,161,695.86/1,603,313.49 = 916,117.63/x - Step 3: Cross multiply
1,161,695.86x = 1,603,313.49 × 916,117.63 - Step 4: Simplify right side
1,161,695.86x = 1,468,823,754,032.99 - Step 5: Solve for x
x = 1,468,823,754,032.99/1,161,695.86 - Step 6: Final answer
x = 1,264,378.92
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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.