Finding the Fourth Proportional to 391,918.49, 587,770.95 and 107,541.62
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Solution
The fourth proportional to 391,918.49, 587,770.95 and 107,541.62 is: 161,283.12
Step by Step Solution
- Step 1: Write the proportion equation
391,918.49 : 587,770.95 = 107,541.62 : x - Step 2: Convert to fraction form
391,918.49/587,770.95 = 107,541.62/x - Step 3: Cross multiply
391,918.49x = 587,770.95 × 107,541.62 - Step 4: Simplify right side
391,918.49x = 63,209,836,675.38 - Step 5: Solve for x
x = 63,209,836,675.38/391,918.49 - Step 6: Final answer
x = 161,283.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.