Finding the Fourth Proportional to 1,115,107.02, 1,538,866.35 and 605,809.80
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Solution
The fourth proportional to 1,115,107.02, 1,538,866.35 and 605,809.80 is: 836,027.66
Step by Step Solution
- Step 1: Write the proportion equation
1,115,107.02 : 1,538,866.35 = 605,809.80 : x - Step 2: Convert to fraction form
1,115,107.02/1,538,866.35 = 605,809.80/x - Step 3: Cross multiply
1,115,107.02x = 1,538,866.35 × 605,809.80 - Step 4: Simplify right side
1,115,107.02x = 932,260,315,720.23 - Step 5: Solve for x
x = 932,260,315,720.23/1,115,107.02 - Step 6: Final answer
x = 836,027.66
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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.