Finding the Fourth Proportional to 2,128,745.25, 2,937,668.45 and 1,365,832.17
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Solution
The fourth proportional to 2,128,745.25, 2,937,668.45 and 1,365,832.17 is: 1,884,848.39
Step by Step Solution
- Step 1: Write the proportion equation
2,128,745.25 : 2,937,668.45 = 1,365,832.17 : x - Step 2: Convert to fraction form
2,128,745.25/2,937,668.45 = 1,365,832.17/x - Step 3: Cross multiply
2,128,745.25x = 2,937,668.45 × 1,365,832.17 - Step 4: Simplify right side
2,128,745.25x = 4,012,362,066,974.88 - Step 5: Solve for x
x = 4,012,362,066,974.88/2,128,745.25 - Step 6: Final answer
x = 1,884,848.39
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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.