Finding the Fourth Proportional to 771,729.86, 1,157,638.49 and 239,326.58
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Solution
The fourth proportional to 771,729.86, 1,157,638.49 and 239,326.58 is: 359,003.42
Step by Step Solution
- Step 1: Write the proportion equation
771,729.86 : 1,157,638.49 = 239,326.58 : x - Step 2: Convert to fraction form
771,729.86/1,157,638.49 = 239,326.58/x - Step 3: Cross multiply
771,729.86x = 1,157,638.49 × 239,326.58 - Step 4: Simplify right side
771,729.86x = 277,053,660,688.06 - Step 5: Solve for x
x = 277,053,660,688.06/771,729.86 - Step 6: Final answer
x = 359,003.42
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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.