Finding the Fourth Proportional to 847,059.12, 1,270,319.24 and 278,309.13
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Solution
The fourth proportional to 847,059.12, 1,270,319.24 and 278,309.13 is: 417,375.17
Step by Step Solution
- Step 1: Write the proportion equation
847,059.12 : 1,270,319.24 = 278,309.13 : x - Step 2: Convert to fraction form
847,059.12/1,270,319.24 = 278,309.13/x - Step 3: Cross multiply
847,059.12x = 1,270,319.24 × 278,309.13 - Step 4: Simplify right side
847,059.12x = 353,541,441,115.12 - Step 5: Solve for x
x = 353,541,441,115.12/847,059.12 - Step 6: Final answer
x = 417,375.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.