Finding the Fourth Proportional to 485,701.80, 728,552.70 and 367,603.80
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Solution
The fourth proportional to 485,701.80, 728,552.70 and 367,603.80 is: 551,405.70
Step by Step Solution
- Step 1: Write the proportion equation
485,701.80 : 728,552.70 = 367,603.80 : x - Step 2: Convert to fraction form
485,701.80/728,552.70 = 367,603.80/x - Step 3: Cross multiply
485,701.80x = 728,552.70 × 367,603.80 - Step 4: Simplify right side
485,701.80x = 267,818,741,020.26 - Step 5: Solve for x
x = 267,818,741,020.26/485,701.80 - Step 6: Final answer
x = 551,405.70
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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.