Finding the Fourth Proportional to 489,692.69, 676,091.00 and 336,681.97
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Solution
The fourth proportional to 489,692.69, 676,091.00 and 336,681.97 is: 464,837.75
Step by Step Solution
- Step 1: Write the proportion equation
489,692.69 : 676,091.00 = 336,681.97 : x - Step 2: Convert to fraction form
489,692.69/676,091.00 = 336,681.97/x - Step 3: Cross multiply
489,692.69x = 676,091.00 × 336,681.97 - Step 4: Simplify right side
489,692.69x = 227,627,648,930.75 - Step 5: Solve for x
x = 227,627,648,930.75/489,692.69 - Step 6: Final answer
x = 464,837.75
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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.