Finding the Fourth Proportional to 636,684.75, 878,749.74 and 364,934.79
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Solution
The fourth proportional to 636,684.75, 878,749.74 and 364,934.79 is: 503,681.53
Step by Step Solution
- Step 1: Write the proportion equation
636,684.75 : 878,749.74 = 364,934.79 : x - Step 2: Convert to fraction form
636,684.75/878,749.74 = 364,934.79/x - Step 3: Cross multiply
636,684.75x = 878,749.74 × 364,934.79 - Step 4: Simplify right side
636,684.75x = 320,686,351,829.46 - Step 5: Solve for x
x = 320,686,351,829.46/636,684.75 - Step 6: Final answer
x = 503,681.53
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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.