Finding the Fourth Proportional to 685,222.08, 945,964.62 and 427,177.68
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Solution
The fourth proportional to 685,222.08, 945,964.62 and 427,177.68 is: 589,728.47
Step by Step Solution
- Step 1: Write the proportion equation
685,222.08 : 945,964.62 = 427,177.68 : x - Step 2: Convert to fraction form
685,222.08/945,964.62 = 427,177.68/x - Step 3: Cross multiply
685,222.08x = 945,964.62 × 427,177.68 - Step 4: Simplify right side
685,222.08x = 404,094,971,733.68 - Step 5: Solve for x
x = 404,094,971,733.68/685,222.08 - Step 6: Final answer
x = 589,728.47
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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.