Finding the Fourth Proportional to 519,743.75, 717,246.38 and 281,279.75
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Solution
The fourth proportional to 519,743.75, 717,246.38 and 281,279.75 is: 388,166.06
Step by Step Solution
- Step 1: Write the proportion equation
519,743.75 : 717,246.38 = 281,279.75 : x - Step 2: Convert to fraction form
519,743.75/717,246.38 = 281,279.75/x - Step 3: Cross multiply
519,743.75x = 717,246.38 × 281,279.75 - Step 4: Simplify right side
519,743.75x = 201,746,881,048.41 - Step 5: Solve for x
x = 201,746,881,048.41/519,743.75 - Step 6: Final answer
x = 388,166.06
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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.