Finding the Fourth Proportional to 874,965.13, 1,207,451.90 and 472,557.13
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Solution
The fourth proportional to 874,965.13, 1,207,451.90 and 472,557.13 is: 652,128.85
Step by Step Solution
- Step 1: Write the proportion equation
874,965.13 : 1,207,451.90 = 472,557.13 : x - Step 2: Convert to fraction form
874,965.13/1,207,451.90 = 472,557.13/x - Step 3: Cross multiply
874,965.13x = 1,207,451.90 × 472,557.13 - Step 4: Simplify right side
874,965.13x = 570,590,004,477.05 - Step 5: Solve for x
x = 570,590,004,477.05/874,965.13 - Step 6: Final answer
x = 652,128.85
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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.