Finding the Fourth Proportional to 3,221,441.72, 4,445,475.84 and 1,771,126.07
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Solution
The fourth proportional to 3,221,441.72, 4,445,475.84 and 1,771,126.07 is: 2,444,091.45
Step by Step Solution
- Step 1: Write the proportion equation
3,221,441.72 : 4,445,475.84 = 1,771,126.07 : x - Step 2: Convert to fraction form
3,221,441.72/4,445,475.84 = 1,771,126.07/x - Step 3: Cross multiply
3,221,441.72x = 4,445,475.84 × 1,771,126.07 - Step 4: Simplify right side
3,221,441.72x = 7,873,498,153,779.15 - Step 5: Solve for x
x = 7,873,498,153,779.15/3,221,441.72 - Step 6: Final answer
x = 2,444,091.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.