Finding the Fourth Proportional to 3,072,820.80, 4,609,231.20 and 2,127,259.20
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Solution
The fourth proportional to 3,072,820.80, 4,609,231.20 and 2,127,259.20 is: 3,190,888.80
Step by Step Solution
- Step 1: Write the proportion equation
3,072,820.80 : 4,609,231.20 = 2,127,259.20 : x - Step 2: Convert to fraction form
3,072,820.80/4,609,231.20 = 2,127,259.20/x - Step 3: Cross multiply
3,072,820.80x = 4,609,231.20 × 2,127,259.20 - Step 4: Simplify right side
3,072,820.80x = 9,805,029,475,127.04 - Step 5: Solve for x
x = 9,805,029,475,127.04/3,072,820.80 - Step 6: Final answer
x = 3,190,888.80
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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.