Finding the Fourth Proportional to 1,100,340.48, 1,649,965.92 and 390,262.08
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Solution
The fourth proportional to 1,100,340.48, 1,649,965.92 and 390,262.08 is: 585,199.89
Step by Step Solution
- Step 1: Write the proportion equation
1,100,340.48 : 1,649,965.92 = 390,262.08 : x - Step 2: Convert to fraction form
1,100,340.48/1,649,965.92 = 390,262.08/x - Step 3: Cross multiply
1,100,340.48x = 1,649,965.92 × 390,262.08 - Step 4: Simplify right side
1,100,340.48x = 643,919,131,868.31 - Step 5: Solve for x
x = 643,919,131,868.31/1,100,340.48 - Step 6: Final answer
x = 585,199.89
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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.