Finding the Fourth Proportional to 812,115.07, 1,120,838.88 and 467,885.44
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Solution
The fourth proportional to 812,115.07, 1,120,838.88 and 467,885.44 is: 645,751.09
Step by Step Solution
- Step 1: Write the proportion equation
812,115.07 : 1,120,838.88 = 467,885.44 : x - Step 2: Convert to fraction form
812,115.07/1,120,838.88 = 467,885.44/x - Step 3: Cross multiply
812,115.07x = 1,120,838.88 × 467,885.44 - Step 4: Simplify right side
812,115.07x = 524,424,192,537.91 - Step 5: Solve for x
x = 524,424,192,537.91/812,115.07 - Step 6: Final answer
x = 645,751.09
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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.