Finding the Fourth Proportional to 842,519.56, 1,263,779.35 and 281,554.06
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Solution
The fourth proportional to 842,519.56, 1,263,779.35 and 281,554.06 is: 422,331.09
Step by Step Solution
- Step 1: Write the proportion equation
842,519.56 : 1,263,779.35 = 281,554.06 : x - Step 2: Convert to fraction form
842,519.56/1,263,779.35 = 281,554.06/x - Step 3: Cross multiply
842,519.56x = 1,263,779.35 × 281,554.06 - Step 4: Simplify right side
842,519.56x = 355,822,206,936.66 - Step 5: Solve for x
x = 355,822,206,936.66/842,519.56 - Step 6: Final answer
x = 422,331.09
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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.