Finding the Fourth Proportional to 812,052.36, 1,120,603.68 and 449,476.92
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Solution
The fourth proportional to 812,052.36, 1,120,603.68 and 449,476.92 is: 620,262.33
Step by Step Solution
- Step 1: Write the proportion equation
812,052.36 : 1,120,603.68 = 449,476.92 : x - Step 2: Convert to fraction form
812,052.36/1,120,603.68 = 449,476.92/x - Step 3: Cross multiply
812,052.36x = 1,120,603.68 × 449,476.92 - Step 4: Simplify right side
812,052.36x = 503,685,490,627.07 - Step 5: Solve for x
x = 503,685,490,627.07/812,052.36 - Step 6: Final answer
x = 620,262.33
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1.5x scale
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.