Finding the Fourth Proportional to 455,674.79, 628,829.19 and 251,725.80
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Solution
The fourth proportional to 455,674.79, 628,829.19 and 251,725.80 is: 347,380.49
Step by Step Solution
- Step 1: Write the proportion equation
455,674.79 : 628,829.19 = 251,725.80 : x - Step 2: Convert to fraction form
455,674.79/628,829.19 = 251,725.80/x - Step 3: Cross multiply
455,674.79x = 628,829.19 × 251,725.80 - Step 4: Simplify right side
455,674.79x = 158,292,533,274.21 - Step 5: Solve for x
x = 158,292,533,274.21/455,674.79 - Step 6: Final answer
x = 347,380.49
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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.