Finding the Fourth Proportional to 771,728.86, 1,157,636.99 and 239,325.58
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Solution
The fourth proportional to 771,728.86, 1,157,636.99 and 239,325.58 is: 359,001.92
Step by Step Solution
- Step 1: Write the proportion equation
771,728.86 : 1,157,636.99 = 239,325.58 : x - Step 2: Convert to fraction form
771,728.86/1,157,636.99 = 239,325.58/x - Step 3: Cross multiply
771,728.86x = 1,157,636.99 × 239,325.58 - Step 4: Simplify right side
771,728.86x = 277,052,144,061.20 - Step 5: Solve for x
x = 277,052,144,061.20/771,728.86 - Step 6: Final answer
x = 359,001.92
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1.5x scale
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.