Finding the Fourth Proportional to 1,259,964.09, 1,889,420.64 and 395,176.20
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Solution
The fourth proportional to 1,259,964.09, 1,889,420.64 and 395,176.20 is: 592,599.48
Step by Step Solution
- Step 1: Write the proportion equation
1,259,964.09 : 1,889,420.64 = 395,176.20 : x - Step 2: Convert to fraction form
1,259,964.09/1,889,420.64 = 395,176.20/x - Step 3: Cross multiply
1,259,964.09x = 1,889,420.64 × 395,176.20 - Step 4: Simplify right side
1,259,964.09x = 746,654,068,716.77 - Step 5: Solve for x
x = 746,654,068,716.77/1,259,964.09 - Step 6: Final answer
x = 592,599.48
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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.