Finding the Fourth Proportional to 487,739.90, 673,107.20 and 272,867.14
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Solution
The fourth proportional to 487,739.90, 673,107.20 and 272,867.14 is: 376,571.28
Step by Step Solution
- Step 1: Write the proportion equation
487,739.90 : 673,107.20 = 272,867.14 : x - Step 2: Convert to fraction form
487,739.90/673,107.20 = 272,867.14/x - Step 3: Cross multiply
487,739.90x = 673,107.20 × 272,867.14 - Step 4: Simplify right side
487,739.90x = 183,668,836,577.41 - Step 5: Solve for x
x = 183,668,836,577.41/487,739.90 - Step 6: Final answer
x = 376,571.28
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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.