Finding the Fourth Proportional to 568,216.49, 784,155.32 and 310,110.09
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Solution
The fourth proportional to 568,216.49, 784,155.32 and 310,110.09 is: 427,960.96
Step by Step Solution
- Step 1: Write the proportion equation
568,216.49 : 784,155.32 = 310,110.09 : x - Step 2: Convert to fraction form
568,216.49/784,155.32 = 310,110.09/x - Step 3: Cross multiply
568,216.49x = 784,155.32 × 310,110.09 - Step 4: Simplify right side
568,216.49x = 243,174,476,859.18 - Step 5: Solve for x
x = 243,174,476,859.18/568,216.49 - Step 6: Final answer
x = 427,960.96
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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.