Finding the Fourth Proportional to 1,138,948.09, 1,709,261.53 and 539,906.92
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Solution
The fourth proportional to 1,138,948.09, 1,709,261.53 and 539,906.92 is: 810,258.28
Step by Step Solution
- Step 1: Write the proportion equation
1,138,948.09 : 1,709,261.53 = 539,906.92 : x - Step 2: Convert to fraction form
1,138,948.09/1,709,261.53 = 539,906.92/x - Step 3: Cross multiply
1,138,948.09x = 1,709,261.53 × 539,906.92 - Step 4: Simplify right side
1,138,948.09x = 922,842,122,513.87 - Step 5: Solve for x
x = 922,842,122,513.87/1,138,948.09 - Step 6: Final answer
x = 810,258.28
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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.