Finding the Fourth Proportional to 823,907.80, 1,155,129.80 and 823,907.80
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Solution
The fourth proportional to 823,907.80, 1,155,129.80 and 823,907.80 is: 1,155,129.80
Step by Step Solution
- Step 1: Write the proportion equation
823,907.80 : 1,155,129.80 = 823,907.80 : x - Step 2: Convert to fraction form
823,907.80/1,155,129.80 = 823,907.80/x - Step 3: Cross multiply
823,907.80x = 1,155,129.80 × 823,907.80 - Step 4: Simplify right side
823,907.80x = 951,720,452,232.44 - Step 5: Solve for x
x = 951,720,452,232.44/823,907.80 - Step 6: Final answer
x = 1,155,129.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.