Finding the Fourth Proportional to 812,465.26, 1,121,188.35 and 449,881.32
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Solution
The fourth proportional to 812,465.26, 1,121,188.35 and 449,881.32 is: 620,828.64
Step by Step Solution
- Step 1: Write the proportion equation
812,465.26 : 1,121,188.35 = 449,881.32 : x - Step 2: Convert to fraction form
812,465.26/1,121,188.35 = 449,881.32/x - Step 3: Cross multiply
812,465.26x = 1,121,188.35 × 449,881.32 - Step 4: Simplify right side
812,465.26x = 504,401,700,758.13 - Step 5: Solve for x
x = 504,401,700,758.13/812,465.26 - Step 6: Final answer
x = 620,828.64
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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.