Finding the Fourth Proportional to 548,564.64, 757,089.12 and 306,860.64
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Solution
The fourth proportional to 548,564.64, 757,089.12 and 306,860.64 is: 423,506.79
Step by Step Solution
- Step 1: Write the proportion equation
548,564.64 : 757,089.12 = 306,860.64 : x - Step 2: Convert to fraction form
548,564.64/757,089.12 = 306,860.64/x - Step 3: Cross multiply
548,564.64x = 757,089.12 × 306,860.64 - Step 4: Simplify right side
548,564.64x = 232,320,851,900.24 - Step 5: Solve for x
x = 232,320,851,900.24/548,564.64 - Step 6: Final answer
x = 423,506.79
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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.