Finding the Fourth Proportional to 813,450.96, 1,121,979.36 and 537,489.12
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Solution
The fourth proportional to 813,450.96, 1,121,979.36 and 537,489.12 is: 741,349.79
Step by Step Solution
- Step 1: Write the proportion equation
813,450.96 : 1,121,979.36 = 537,489.12 : x - Step 2: Convert to fraction form
813,450.96/1,121,979.36 = 537,489.12/x - Step 3: Cross multiply
813,450.96x = 1,121,979.36 × 537,489.12 - Step 4: Simplify right side
813,450.96x = 603,051,698,864.56 - Step 5: Solve for x
x = 603,051,698,864.56/813,450.96 - Step 6: Final answer
x = 741,349.79
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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.