Finding the Fourth Proportional to 497,433.97, 686,264.01 and 306,115.21
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Solution
The fourth proportional to 497,433.97, 686,264.01 and 306,115.21 is: 422,319.07
Step by Step Solution
- Step 1: Write the proportion equation
497,433.97 : 686,264.01 = 306,115.21 : x - Step 2: Convert to fraction form
497,433.97/686,264.01 = 306,115.21/x - Step 3: Cross multiply
497,433.97x = 686,264.01 × 306,115.21 - Step 4: Simplify right side
497,433.97x = 210,075,848,105.27 - Step 5: Solve for x
x = 210,075,848,105.27/497,433.97 - Step 6: Final answer
x = 422,319.07
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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.