Finding the Fourth Proportional to 1,001,418.12, 1,502,128.26 and 253,464.12
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Solution
The fourth proportional to 1,001,418.12, 1,502,128.26 and 253,464.12 is: 380,196.45
Step by Step Solution
- Step 1: Write the proportion equation
1,001,418.12 : 1,502,128.26 = 253,464.12 : x - Step 2: Convert to fraction form
1,001,418.12/1,502,128.26 = 253,464.12/x - Step 3: Cross multiply
1,001,418.12x = 1,502,128.26 × 253,464.12 - Step 4: Simplify right side
1,001,418.12x = 380,735,617,548.03 - Step 5: Solve for x
x = 380,735,617,548.03/1,001,418.12 - Step 6: Final answer
x = 380,196.45
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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.