Finding the Fourth Proportional to 3,777,128.09, 5,212,443.40 and 2,058,248.62
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Solution
The fourth proportional to 3,777,128.09, 5,212,443.40 and 2,058,248.62 is: 2,840,386.71
Step by Step Solution
- Step 1: Write the proportion equation
3,777,128.09 : 5,212,443.40 = 2,058,248.62 : x - Step 2: Convert to fraction form
3,777,128.09/5,212,443.40 = 2,058,248.62/x - Step 3: Cross multiply
3,777,128.09x = 5,212,443.40 × 2,058,248.62 - Step 4: Simplify right side
3,777,128.09x = 10,728,504,416,701.38 - Step 5: Solve for x
x = 10,728,504,416,701.38/3,777,128.09 - Step 6: Final answer
x = 2,840,386.71
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1.5x scale
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.