Finding the Fourth Proportional to 411,961.21, 618,029.99 and 127,645.44
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Solution
The fourth proportional to 411,961.21, 618,029.99 and 127,645.44 is: 191,495.48
Step by Step Solution
- Step 1: Write the proportion equation
411,961.21 : 618,029.99 = 127,645.44 : x - Step 2: Convert to fraction form
411,961.21/618,029.99 = 127,645.44/x - Step 3: Cross multiply
411,961.21x = 618,029.99 × 127,645.44 - Step 4: Simplify right side
411,961.21x = 78,888,710,006.75 - Step 5: Solve for x
x = 78,888,710,006.75/411,961.21 - Step 6: Final answer
x = 191,495.48
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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.