Finding the Fourth Proportional to 636,485.76, 878,356.80 and 350,007.96
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Solution
The fourth proportional to 636,485.76, 878,356.80 and 350,007.96 is: 483,014.53
Step by Step Solution
- Step 1: Write the proportion equation
636,485.76 : 878,356.80 = 350,007.96 : x - Step 2: Convert to fraction form
636,485.76/878,356.80 = 350,007.96/x - Step 3: Cross multiply
636,485.76x = 878,356.80 × 350,007.96 - Step 4: Simplify right side
636,485.76x = 307,431,871,720.13 - Step 5: Solve for x
x = 307,431,871,720.13/636,485.76 - Step 6: Final answer
x = 483,014.53
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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.