Finding the Fourth Proportional to 497,515.14, 686,571.12 and 282,655.56
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Solution
The fourth proportional to 497,515.14, 686,571.12 and 282,655.56 is: 390,064.80
Step by Step Solution
- Step 1: Write the proportion equation
497,515.14 : 686,571.12 = 282,655.56 : x - Step 2: Convert to fraction form
497,515.14/686,571.12 = 282,655.56/x - Step 3: Cross multiply
497,515.14x = 686,571.12 × 282,655.56 - Step 4: Simplify right side
497,515.14x = 194,063,144,403.43 - Step 5: Solve for x
x = 194,063,144,403.43/497,515.14 - Step 6: Final answer
x = 390,064.80
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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.