Finding the Fourth Proportional to 385,920.99, 577,884.51 and 266,346.90
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Solution
The fourth proportional to 385,920.99, 577,884.51 and 266,346.90 is: 398,832.28
Step by Step Solution
- Step 1: Write the proportion equation
385,920.99 : 577,884.51 = 266,346.90 : x - Step 2: Convert to fraction form
385,920.99/577,884.51 = 266,346.90/x - Step 3: Cross multiply
385,920.99x = 577,884.51 × 266,346.90 - Step 4: Simplify right side
385,920.99x = 153,917,747,796.52 - Step 5: Solve for x
x = 153,917,747,796.52/385,920.99 - Step 6: Final answer
x = 398,832.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.