Finding the Fourth Proportional to 755,900.37, 1,043,142.56 and 416,368.62
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Solution
The fourth proportional to 755,900.37, 1,043,142.56 and 416,368.62 is: 574,588.72
Step by Step Solution
- Step 1: Write the proportion equation
755,900.37 : 1,043,142.56 = 416,368.62 : x - Step 2: Convert to fraction form
755,900.37/1,043,142.56 = 416,368.62/x - Step 3: Cross multiply
755,900.37x = 1,043,142.56 × 416,368.62 - Step 4: Simplify right side
755,900.37x = 434,331,828,170.47 - Step 5: Solve for x
x = 434,331,828,170.47/755,900.37 - Step 6: Final answer
x = 574,588.72
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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.