Finding the Fourth Proportional to 568,258.68, 784,192.74 and 310,135.32
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Solution
The fourth proportional to 568,258.68, 784,192.74 and 310,135.32 is: 427,984.43
Step by Step Solution
- Step 1: Write the proportion equation
568,258.68 : 784,192.74 = 310,135.32 : x - Step 2: Convert to fraction form
568,258.68/784,192.74 = 310,135.32/x - Step 3: Cross multiply
568,258.68x = 784,192.74 × 310,135.32 - Step 4: Simplify right side
568,258.68x = 243,205,866,361.58 - Step 5: Solve for x
x = 243,205,866,361.58/568,258.68 - Step 6: Final answer
x = 427,984.43
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1.5x scale
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.