Finding the Fourth Proportional to 612,386.07, 916,613.76 and 327,364.08
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Solution
The fourth proportional to 612,386.07, 916,613.76 and 327,364.08 is: 489,995.50
Step by Step Solution
- Step 1: Write the proportion equation
612,386.07 : 916,613.76 = 327,364.08 : x - Step 2: Convert to fraction form
612,386.07/916,613.76 = 327,364.08/x - Step 3: Cross multiply
612,386.07x = 916,613.76 × 327,364.08 - Step 4: Simplify right side
612,386.07x = 300,066,420,257.74 - Step 5: Solve for x
x = 300,066,420,257.74/612,386.07 - Step 6: Final answer
x = 489,995.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.