Finding the Fourth Proportional to 772,830.80, 1,159,246.20 and 274,245.20
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Solution
The fourth proportional to 772,830.80, 1,159,246.20 and 274,245.20 is: 411,367.80
Step by Step Solution
- Step 1: Write the proportion equation
772,830.80 : 1,159,246.20 = 274,245.20 : x - Step 2: Convert to fraction form
772,830.80/1,159,246.20 = 274,245.20/x - Step 3: Cross multiply
772,830.80x = 1,159,246.20 × 274,245.20 - Step 4: Simplify right side
772,830.80x = 317,917,705,968.24 - Step 5: Solve for x
x = 317,917,705,968.24/772,830.80 - Step 6: Final answer
x = 411,367.80
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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.