Finding the Fourth Proportional to 685,149.69, 1,027,866.40 and 205,358.12
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Solution
The fourth proportional to 685,149.69, 1,027,866.40 and 205,358.12 is: 308,079.70
Step by Step Solution
- Step 1: Write the proportion equation
685,149.69 : 1,027,866.40 = 205,358.12 : x - Step 2: Convert to fraction form
685,149.69/1,027,866.40 = 205,358.12/x - Step 3: Cross multiply
685,149.69x = 1,027,866.40 × 205,358.12 - Step 4: Simplify right side
685,149.69x = 211,080,709,716.94 - Step 5: Solve for x
x = 211,080,709,716.94/685,149.69 - Step 6: Final answer
x = 308,079.70
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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.