Finding the Fourth Proportional to 497,534.19, 686,589.58 and 279,743.06
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Solution
The fourth proportional to 497,534.19, 686,589.58 and 279,743.06 is: 386,041.14
Step by Step Solution
- Step 1: Write the proportion equation
497,534.19 : 686,589.58 = 279,743.06 : x - Step 2: Convert to fraction form
497,534.19/686,589.58 = 279,743.06/x - Step 3: Cross multiply
497,534.19x = 686,589.58 × 279,743.06 - Step 4: Simplify right side
497,534.19x = 192,068,665,241.65 - Step 5: Solve for x
x = 192,068,665,241.65/497,534.19 - Step 6: Final answer
x = 386,041.14
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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.