Finding the Fourth Proportional to 771,731.21, 1,157,640.57 and 239,327.93
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Solution
The fourth proportional to 771,731.21, 1,157,640.57 and 239,327.93 is: 359,005.47
Step by Step Solution
- Step 1: Write the proportion equation
771,731.21 : 1,157,640.57 = 239,327.93 : x - Step 2: Convert to fraction form
771,731.21/1,157,640.57 = 239,327.93/x - Step 3: Cross multiply
771,731.21x = 1,157,640.57 × 239,327.93 - Step 4: Simplify right side
771,731.21x = 277,055,724,196.22 - Step 5: Solve for x
x = 277,055,724,196.22/771,731.21 - Step 6: Final answer
x = 359,005.47
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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.