Finding the Fourth Proportional to 1,292,914.09, 1,939,369.92 and 346,258.99
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Solution
The fourth proportional to 1,292,914.09, 1,939,369.92 and 346,258.99 is: 519,388.16
Step by Step Solution
- Step 1: Write the proportion equation
1,292,914.09 : 1,939,369.92 = 346,258.99 : x - Step 2: Convert to fraction form
1,292,914.09/1,939,369.92 = 346,258.99/x - Step 3: Cross multiply
1,292,914.09x = 1,939,369.92 × 346,258.99 - Step 4: Simplify right side
1,292,914.09x = 671,524,269,735.58 - Step 5: Solve for x
x = 671,524,269,735.58/1,292,914.09 - Step 6: Final answer
x = 519,388.16
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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.