Finding the Fourth Proportional to 451,800.12, 622,973.13 and 288,237.99
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Solution
The fourth proportional to 451,800.12, 622,973.13 and 288,237.99 is: 397,442.40
Step by Step Solution
- Step 1: Write the proportion equation
451,800.12 : 622,973.13 = 288,237.99 : x - Step 2: Convert to fraction form
451,800.12/622,973.13 = 288,237.99/x - Step 3: Cross multiply
451,800.12x = 622,973.13 × 288,237.99 - Step 4: Simplify right side
451,800.12x = 179,564,522,815.21 - Step 5: Solve for x
x = 179,564,522,815.21/451,800.12 - Step 6: Final answer
x = 397,442.40
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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.