Finding the Fourth Proportional to 1,138,904, 1,571,551.08 and 629,537.12
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Solution
The fourth proportional to 1,138,904, 1,571,551.08 and 629,537.12 is: 868,685.81
Step by Step Solution
- Step 1: Write the proportion equation
1,138,904 : 1,571,551.08 = 629,537.12 : x - Step 2: Convert to fraction form
1,138,904/1,571,551.08 = 629,537.12/x - Step 3: Cross multiply
1,138,904x = 1,571,551.08 × 629,537.12 - Step 4: Simplify right side
1,138,904x = 989,349,740,836.09 - Step 5: Solve for x
x = 989,349,740,836.09/1,138,904 - Step 6: Final answer
x = 868,685.81
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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.