Finding the Fourth Proportional to 613,836.38, 847,136.74 and 372,129.14
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Solution
The fourth proportional to 613,836.38, 847,136.74 and 372,129.14 is: 513,564.00
Step by Step Solution
- Step 1: Write the proportion equation
613,836.38 : 847,136.74 = 372,129.14 : x - Step 2: Convert to fraction form
613,836.38/847,136.74 = 372,129.14/x - Step 3: Cross multiply
613,836.38x = 847,136.74 × 372,129.14 - Step 4: Simplify right side
613,836.38x = 315,244,266,518.60 - Step 5: Solve for x
x = 315,244,266,518.60/613,836.38 - Step 6: Final answer
x = 513,564.00
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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.