Finding the Fourth Proportional to 763,112.80, 1,052,795.98 and 457,202.07
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Solution
The fourth proportional to 763,112.80, 1,052,795.98 and 457,202.07 is: 630,759.31
Step by Step Solution
- Step 1: Write the proportion equation
763,112.80 : 1,052,795.98 = 457,202.07 : x - Step 2: Convert to fraction form
763,112.80/1,052,795.98 = 457,202.07/x - Step 3: Cross multiply
763,112.80x = 1,052,795.98 × 457,202.07 - Step 4: Simplify right side
763,112.80x = 481,340,501,915.18 - Step 5: Solve for x
x = 481,340,501,915.18/763,112.80 - Step 6: Final answer
x = 630,759.31
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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.