Finding the Fourth Proportional to 777,115.80, 1,165,712.10 and 403,867.80
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Solution
The fourth proportional to 777,115.80, 1,165,712.10 and 403,867.80 is: 605,821.66
Step by Step Solution
- Step 1: Write the proportion equation
777,115.80 : 1,165,712.10 = 403,867.80 : x - Step 2: Convert to fraction form
777,115.80/1,165,712.10 = 403,867.80/x - Step 3: Cross multiply
777,115.80x = 1,165,712.10 × 403,867.80 - Step 4: Simplify right side
777,115.80x = 470,793,581,260.38 - Step 5: Solve for x
x = 470,793,581,260.38/777,115.80 - Step 6: Final answer
x = 605,821.66
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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.