Finding the Fourth Proportional to 442,965.80, 664,448.70 and 416,721.80
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Solution
The fourth proportional to 442,965.80, 664,448.70 and 416,721.80 is: 625,082.70
Step by Step Solution
- Step 1: Write the proportion equation
442,965.80 : 664,448.70 = 416,721.80 : x - Step 2: Convert to fraction form
442,965.80/664,448.70 = 416,721.80/x - Step 3: Cross multiply
442,965.80x = 664,448.70 × 416,721.80 - Step 4: Simplify right side
442,965.80x = 276,890,258,271.66 - Step 5: Solve for x
x = 276,890,258,271.66/442,965.80 - Step 6: Final answer
x = 625,082.70
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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.