Finding the Fourth Proportional to 1,133,651.09, 1,692,182.39 and 999,134.80
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Solution
The fourth proportional to 1,133,651.09, 1,692,182.39 and 999,134.80 is: 1,491,392.12
Step by Step Solution
- Step 1: Write the proportion equation
1,133,651.09 : 1,692,182.39 = 999,134.80 : x - Step 2: Convert to fraction form
1,133,651.09/1,692,182.39 = 999,134.80/x - Step 3: Cross multiply
1,133,651.09x = 1,692,182.39 × 999,134.80 - Step 4: Simplify right side
1,133,651.09x = 1,690,718,310,190.18 - Step 5: Solve for x
x = 1,690,718,310,190.18/1,133,651.09 - Step 6: Final answer
x = 1,491,392.12
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.