Finding the Fourth Proportional to 3,128,842.36, 4,693,344.54 and 998,924.68
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Solution
The fourth proportional to 3,128,842.36, 4,693,344.54 and 998,924.68 is: 1,498,412.88
Step by Step Solution
- Step 1: Write the proportion equation
3,128,842.36 : 4,693,344.54 = 998,924.68 : x - Step 2: Convert to fraction form
3,128,842.36/4,693,344.54 = 998,924.68/x - Step 3: Cross multiply
3,128,842.36x = 4,693,344.54 × 998,924.68 - Step 4: Simplify right side
3,128,842.36x = 4,688,297,692,749.25 - Step 5: Solve for x
x = 4,688,297,692,749.25/3,128,842.36 - Step 6: Final answer
x = 1,498,412.88
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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.