Finding the Fourth Proportional to 814,187.36, 1,221,284.18 and 340,540.47
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Solution
The fourth proportional to 814,187.36, 1,221,284.18 and 340,540.47 is: 510,812.02
Step by Step Solution
- Step 1: Write the proportion equation
814,187.36 : 1,221,284.18 = 340,540.47 : x - Step 2: Convert to fraction form
814,187.36/1,221,284.18 = 340,540.47/x - Step 3: Cross multiply
814,187.36x = 1,221,284.18 × 340,540.47 - Step 4: Simplify right side
814,187.36x = 415,896,689,512.12 - Step 5: Solve for x
x = 415,896,689,512.12/814,187.36 - Step 6: Final answer
x = 510,812.02
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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.