Finding the Fourth Proportional to 875,028.38, 1,207,539.97 and 472,620.38
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Solution
The fourth proportional to 875,028.38, 1,207,539.97 and 472,620.38 is: 652,216.55
Step by Step Solution
- Step 1: Write the proportion equation
875,028.38 : 1,207,539.97 = 472,620.38 : x - Step 2: Convert to fraction form
875,028.38/1,207,539.97 = 472,620.38/x - Step 3: Cross multiply
875,028.38x = 1,207,539.97 × 472,620.38 - Step 4: Simplify right side
875,028.38x = 570,707,992,267.34 - Step 5: Solve for x
x = 570,707,992,267.34/875,028.38 - Step 6: Final answer
x = 652,216.55
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1.5x scale
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.