Finding the Fourth Proportional to 2,415,139.27, 3,622,486.79 and 817,519.75
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Solution
The fourth proportional to 2,415,139.27, 3,622,486.79 and 817,519.75 is: 1,226,204.44
Step by Step Solution
- Step 1: Write the proportion equation
2,415,139.27 : 3,622,486.79 = 817,519.75 : x - Step 2: Convert to fraction form
2,415,139.27/3,622,486.79 = 817,519.75/x - Step 3: Cross multiply
2,415,139.27x = 3,622,486.79 × 817,519.75 - Step 4: Simplify right side
2,415,139.27x = 2,961,454,490,851.50 - Step 5: Solve for x
x = 2,961,454,490,851.50/2,415,139.27 - Step 6: Final answer
x = 1,226,204.44
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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.