Finding the Fourth Proportional to 814,197.55, 1,221,299.47 and 340,550.66
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Solution
The fourth proportional to 814,197.55, 1,221,299.47 and 340,550.66 is: 510,827.31
Step by Step Solution
- Step 1: Write the proportion equation
814,197.55 : 1,221,299.47 = 340,550.66 : x - Step 2: Convert to fraction form
814,197.55/1,221,299.47 = 340,550.66/x - Step 3: Cross multiply
814,197.55x = 1,221,299.47 × 340,550.66 - Step 4: Simplify right side
814,197.55x = 415,914,340,566.15 - Step 5: Solve for x
x = 415,914,340,566.15/814,197.55 - Step 6: Final answer
x = 510,827.31
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1.5x scale
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.