Finding the Fourth Proportional to 1,112,420.94, 1,668,879.77 and 472,744.96
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Solution
The fourth proportional to 1,112,420.94, 1,668,879.77 and 472,744.96 is: 709,222.99
Step by Step Solution
- Step 1: Write the proportion equation
1,112,420.94 : 1,668,879.77 = 472,744.96 : x - Step 2: Convert to fraction form
1,112,420.94/1,668,879.77 = 472,744.96/x - Step 3: Cross multiply
1,112,420.94x = 1,668,879.77 × 472,744.96 - Step 4: Simplify right side
1,112,420.94x = 788,954,500,113.46 - Step 5: Solve for x
x = 788,954,500,113.46/1,112,420.94 - Step 6: Final answer
x = 709,222.99
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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.