Finding the Fourth Proportional to 636,646.67, 878,697.21 and 364,896.68
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Solution
The fourth proportional to 636,646.67, 878,697.21 and 364,896.68 is: 503,628.95
Step by Step Solution
- Step 1: Write the proportion equation
636,646.67 : 878,697.21 = 364,896.68 : x - Step 2: Convert to fraction form
636,646.67/878,697.21 = 364,896.68/x - Step 3: Cross multiply
636,646.67x = 878,697.21 × 364,896.68 - Step 4: Simplify right side
636,646.67x = 320,633,692,829.78 - Step 5: Solve for x
x = 320,633,692,829.78/636,646.67 - Step 6: Final answer
x = 503,628.95
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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.