Finding the Fourth Proportional to 636,203.67, 877,938.75 and 349,721.70
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Solution
The fourth proportional to 636,203.67, 877,938.75 and 349,721.70 is: 482,603.69
Step by Step Solution
- Step 1: Write the proportion equation
636,203.67 : 877,938.75 = 349,721.70 : x - Step 2: Convert to fraction form
636,203.67/877,938.75 = 349,721.70/x - Step 3: Cross multiply
636,203.67x = 877,938.75 × 349,721.70 - Step 4: Simplify right side
636,203.67x = 307,034,233,792.01 - Step 5: Solve for x
x = 307,034,233,792.01/636,203.67 - Step 6: Final answer
x = 482,603.69
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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.