Finding the Fourth Proportional to 743,117.56, 1,025,565.47 and 420,884.98
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Solution
The fourth proportional to 743,117.56, 1,025,565.47 and 420,884.98 is: 580,857.09
Step by Step Solution
- Step 1: Write the proportion equation
743,117.56 : 1,025,565.47 = 420,884.98 : x - Step 2: Convert to fraction form
743,117.56/1,025,565.47 = 420,884.98/x - Step 3: Cross multiply
743,117.56x = 1,025,565.47 × 420,884.98 - Step 4: Simplify right side
743,117.56x = 431,645,097,201.81 - Step 5: Solve for x
x = 431,645,097,201.81/743,117.56 - Step 6: Final answer
x = 580,857.09
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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.