Finding the Fourth Proportional to 411,122.94, 616,790.52 and 126,807.06
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Solution
The fourth proportional to 411,122.94, 616,790.52 and 126,807.06 is: 190,243.32
Step by Step Solution
- Step 1: Write the proportion equation
411,122.94 : 616,790.52 = 126,807.06 : x - Step 2: Convert to fraction form
411,122.94/616,790.52 = 126,807.06/x - Step 3: Cross multiply
411,122.94x = 616,790.52 × 126,807.06 - Step 4: Simplify right side
411,122.94x = 78,213,392,477.07 - Step 5: Solve for x
x = 78,213,392,477.07/411,122.94 - Step 6: Final answer
x = 190,243.32
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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.