Finding the Fourth Proportional to 652,261.26, 900,129.70 and 394,102.20
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Solution
The fourth proportional to 652,261.26, 900,129.70 and 394,102.20 is: 543,866.57
Step by Step Solution
- Step 1: Write the proportion equation
652,261.26 : 900,129.70 = 394,102.20 : x - Step 2: Convert to fraction form
652,261.26/900,129.70 = 394,102.20/x - Step 3: Cross multiply
652,261.26x = 900,129.70 × 394,102.20 - Step 4: Simplify right side
652,261.26x = 354,743,095,055.34 - Step 5: Solve for x
x = 354,743,095,055.34/652,261.26 - Step 6: Final answer
x = 543,866.57
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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.