Finding the Fourth Proportional to 719,587.68, 993,005.28 and 397,291.20
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Solution
The fourth proportional to 719,587.68, 993,005.28 and 397,291.20 is: 548,247.66
Step by Step Solution
- Step 1: Write the proportion equation
719,587.68 : 993,005.28 = 397,291.20 : x - Step 2: Convert to fraction form
719,587.68/993,005.28 = 397,291.20/x - Step 3: Cross multiply
719,587.68x = 993,005.28 × 397,291.20 - Step 4: Simplify right side
719,587.68x = 394,512,259,297.54 - Step 5: Solve for x
x = 394,512,259,297.54/719,587.68 - Step 6: Final answer
x = 548,247.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.