Finding the Fourth Proportional to 747,887.32, 1,031,970.58 and 421,183.14
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Solution
The fourth proportional to 747,887.32, 1,031,970.58 and 421,183.14 is: 581,168.58
Step by Step Solution
- Step 1: Write the proportion equation
747,887.32 : 1,031,970.58 = 421,183.14 : x - Step 2: Convert to fraction form
747,887.32/1,031,970.58 = 421,183.14/x - Step 3: Cross multiply
747,887.32x = 1,031,970.58 × 421,183.14 - Step 4: Simplify right side
747,887.32x = 434,648,609,272.02 - Step 5: Solve for x
x = 434,648,609,272.02/747,887.32 - Step 6: Final answer
x = 581,168.58
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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.