Finding the Fourth Proportional to 1,476,992.70, 2,215,489.05 and 978,356.70
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Solution
The fourth proportional to 1,476,992.70, 2,215,489.05 and 978,356.70 is: 1,467,535.05
Step by Step Solution
- Step 1: Write the proportion equation
1,476,992.70 : 2,215,489.05 = 978,356.70 : x - Step 2: Convert to fraction form
1,476,992.70/2,215,489.05 = 978,356.70/x - Step 3: Cross multiply
1,476,992.70x = 2,215,489.05 × 978,356.70 - Step 4: Simplify right side
1,476,992.70x = 2,167,538,555,844.13 - Step 5: Solve for x
x = 2,167,538,555,844.13/1,476,992.70 - Step 6: Final answer
x = 1,467,535.05
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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.