Finding the Fourth Proportional to 519,740.75, 717,242.24 and 281,276.75
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Solution
The fourth proportional to 519,740.75, 717,242.24 and 281,276.75 is: 388,161.92
Step by Step Solution
- Step 1: Write the proportion equation
519,740.75 : 717,242.24 = 281,276.75 : x - Step 2: Convert to fraction form
519,740.75/717,242.24 = 281,276.75/x - Step 3: Cross multiply
519,740.75x = 717,242.24 × 281,276.75 - Step 4: Simplify right side
519,740.75x = 201,743,564,823.54 - Step 5: Solve for x
x = 201,743,564,823.54/519,740.75 - Step 6: Final answer
x = 388,161.92
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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.