Finding the Fourth Proportional to 823,074.41, 1,240,780.73 and 768,208.05
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Solution
The fourth proportional to 823,074.41, 1,240,780.73 and 768,208.05 is: 1,158,069.95
Step by Step Solution
- Step 1: Write the proportion equation
823,074.41 : 1,240,780.73 = 768,208.05 : x - Step 2: Convert to fraction form
823,074.41/1,240,780.73 = 768,208.05/x - Step 3: Cross multiply
823,074.41x = 1,240,780.73 × 768,208.05 - Step 4: Simplify right side
823,074.41x = 953,177,740,639.12 - Step 5: Solve for x
x = 953,177,740,639.12/823,074.41 - Step 6: Final answer
x = 1,158,069.95
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.