Finding the Fourth Proportional to 1,378,339.28, 2,067,482.96 and 751,243.76
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Solution
The fourth proportional to 1,378,339.28, 2,067,482.96 and 751,243.76 is: 1,126,851.49
Step by Step Solution
- Step 1: Write the proportion equation
1,378,339.28 : 2,067,482.96 = 751,243.76 : x - Step 2: Convert to fraction form
1,378,339.28/2,067,482.96 = 751,243.76/x - Step 3: Cross multiply
1,378,339.28x = 2,067,482.96 × 751,243.76 - Step 4: Simplify right side
1,378,339.28x = 1,553,183,672,606.33 - Step 5: Solve for x
x = 1,553,183,672,606.33/1,378,339.28 - Step 6: Final answer
x = 1,126,851.49
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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.