Finding the Fourth Proportional to 420,554.18, 580,573.05 and 267,744.26
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Solution
The fourth proportional to 420,554.18, 580,573.05 and 267,744.26 is: 369,619.68
Step by Step Solution
- Step 1: Write the proportion equation
420,554.18 : 580,573.05 = 267,744.26 : x - Step 2: Convert to fraction form
420,554.18/580,573.05 = 267,744.26/x - Step 3: Cross multiply
420,554.18x = 580,573.05 × 267,744.26 - Step 4: Simplify right side
420,554.18x = 155,445,101,648.19 - Step 5: Solve for x
x = 155,445,101,648.19/420,554.18 - Step 6: Final answer
x = 369,619.68
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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.