Finding the Fourth Proportional to 780,313.62, 1,170,470.36 and 219,348.12
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Solution
The fourth proportional to 780,313.62, 1,170,470.36 and 219,348.12 is: 329,022.16
Step by Step Solution
- Step 1: Write the proportion equation
780,313.62 : 1,170,470.36 = 219,348.12 : x - Step 2: Convert to fraction form
780,313.62/1,170,470.36 = 219,348.12/x - Step 3: Cross multiply
780,313.62x = 1,170,470.36 × 219,348.12 - Step 4: Simplify right side
780,313.62x = 256,740,472,981.72 - Step 5: Solve for x
x = 256,740,472,981.72/780,313.62 - Step 6: Final answer
x = 329,022.16
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.