Finding the Fourth Proportional to 3,228,805.62, 4,455,587.16 and 1,778,469.84
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Solution
The fourth proportional to 3,228,805.62, 4,455,587.16 and 1,778,469.84 is: 2,454,197.72
Step by Step Solution
- Step 1: Write the proportion equation
3,228,805.62 : 4,455,587.16 = 1,778,469.84 : x - Step 2: Convert to fraction form
3,228,805.62/4,455,587.16 = 1,778,469.84/x - Step 3: Cross multiply
3,228,805.62x = 4,455,587.16 × 1,778,469.84 - Step 4: Simplify right side
3,228,805.62x = 7,924,127,383,551.26 - Step 5: Solve for x
x = 7,924,127,383,551.26/3,228,805.62 - Step 6: Final answer
x = 2,454,197.72
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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.