Finding the Fourth Proportional to 634,465.21, 874,593.37 and 388,995.52
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Solution
The fourth proportional to 634,465.21, 874,593.37 and 388,995.52 is: 536,219.95
Step by Step Solution
- Step 1: Write the proportion equation
634,465.21 : 874,593.37 = 388,995.52 : x - Step 2: Convert to fraction form
634,465.21/874,593.37 = 388,995.52/x - Step 3: Cross multiply
634,465.21x = 874,593.37 × 388,995.52 - Step 4: Simplify right side
634,465.21x = 340,212,900,322.10 - Step 5: Solve for x
x = 340,212,900,322.10/634,465.21 - Step 6: Final answer
x = 536,219.95
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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.