Finding the Fourth Proportional to 782,152.75, 1,079,370.80 and 424,456.75
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Solution
The fourth proportional to 782,152.75, 1,079,370.80 and 424,456.75 is: 585,750.32
Step by Step Solution
- Step 1: Write the proportion equation
782,152.75 : 1,079,370.80 = 424,456.75 : x - Step 2: Convert to fraction form
782,152.75/1,079,370.80 = 424,456.75/x - Step 3: Cross multiply
782,152.75x = 1,079,370.80 × 424,456.75 - Step 4: Simplify right side
782,152.75x = 458,146,221,812.90 - Step 5: Solve for x
x = 458,146,221,812.90/782,152.75 - Step 6: Final answer
x = 585,750.32
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1.5x scale
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.