Finding the Fourth Proportional to 1,692,664.96, 2,538,986.48 and 430,481.68
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Solution
The fourth proportional to 1,692,664.96, 2,538,986.48 and 430,481.68 is: 645,719.73
Step by Step Solution
- Step 1: Write the proportion equation
1,692,664.96 : 2,538,986.48 = 430,481.68 : x - Step 2: Convert to fraction form
1,692,664.96/2,538,986.48 = 430,481.68/x - Step 3: Cross multiply
1,692,664.96x = 2,538,986.48 × 430,481.68 - Step 4: Simplify right side
1,692,664.96x = 1,092,987,165,407.69 - Step 5: Solve for x
x = 1,092,987,165,407.69/1,692,664.96 - Step 6: Final answer
x = 645,719.73
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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.