Finding the Fourth Proportional to 422,554.13, 633,630.70 and 245,115.53
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Solution
The fourth proportional to 422,554.13, 633,630.70 and 245,115.53 is: 367,556.99
Step by Step Solution
- Step 1: Write the proportion equation
422,554.13 : 633,630.70 = 245,115.53 : x - Step 2: Convert to fraction form
422,554.13/633,630.70 = 245,115.53/x - Step 3: Cross multiply
422,554.13x = 633,630.70 × 245,115.53 - Step 4: Simplify right side
422,554.13x = 155,312,724,854.77 - Step 5: Solve for x
x = 155,312,724,854.77/422,554.13 - Step 6: Final answer
x = 367,556.99
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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.