Finding the Fourth Proportional to 747,481.13, 1,121,181.49 and 368,023.58
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Solution
The fourth proportional to 747,481.13, 1,121,181.49 and 368,023.58 is: 552,015.58
Step by Step Solution
- Step 1: Write the proportion equation
747,481.13 : 1,121,181.49 = 368,023.58 : x - Step 2: Convert to fraction form
747,481.13/1,121,181.49 = 368,023.58/x - Step 3: Cross multiply
747,481.13x = 1,121,181.49 × 368,023.58 - Step 4: Simplify right side
747,481.13x = 412,621,225,779.53 - Step 5: Solve for x
x = 412,621,225,779.53/747,481.13 - Step 6: Final answer
x = 552,015.58
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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.