Finding the Fourth Proportional to 849,602.09, 1,274,099.58 and 280,878.21
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Solution
The fourth proportional to 849,602.09, 1,274,099.58 and 280,878.21 is: 421,216.96
Step by Step Solution
- Step 1: Write the proportion equation
849,602.09 : 1,274,099.58 = 280,878.21 : x - Step 2: Convert to fraction form
849,602.09/1,274,099.58 = 280,878.21/x - Step 3: Cross multiply
849,602.09x = 1,274,099.58 × 280,878.21 - Step 4: Simplify right side
849,602.09x = 357,866,809,392.15 - Step 5: Solve for x
x = 357,866,809,392.15/849,602.09 - Step 6: Final answer
x = 421,216.96
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.