Finding the Fourth Proportional to 548,680.80, 821,854.80 and 455,368.80
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Solution
The fourth proportional to 548,680.80, 821,854.80 and 455,368.80 is: 682,085.17
Step by Step Solution
- Step 1: Write the proportion equation
548,680.80 : 821,854.80 = 455,368.80 : x - Step 2: Convert to fraction form
548,680.80/821,854.80 = 455,368.80/x - Step 3: Cross multiply
548,680.80x = 821,854.80 × 455,368.80 - Step 4: Simplify right side
548,680.80x = 374,247,034,050.24 - Step 5: Solve for x
x = 374,247,034,050.24/548,680.80 - Step 6: Final answer
x = 682,085.17
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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.