Finding the Fourth Proportional to 636,648.67, 878,699.97 and 364,898.68
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Solution
The fourth proportional to 636,648.67, 878,699.97 and 364,898.68 is: 503,631.71
Step by Step Solution
- Step 1: Write the proportion equation
636,648.67 : 878,699.97 = 364,898.68 : x - Step 2: Convert to fraction form
636,648.67/878,699.97 = 364,898.68/x - Step 3: Cross multiply
636,648.67x = 878,699.97 × 364,898.68 - Step 4: Simplify right side
636,648.67x = 320,636,459,169.04 - Step 5: Solve for x
x = 320,636,459,169.04/636,648.67 - Step 6: Final answer
x = 503,631.71
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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.