Finding the Fourth Proportional to 820,457.92, 1,132,346.05 and 457,905.13
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Solution
The fourth proportional to 820,457.92, 1,132,346.05 and 457,905.13 is: 631,972.77
Step by Step Solution
- Step 1: Write the proportion equation
820,457.92 : 1,132,346.05 = 457,905.13 : x - Step 2: Convert to fraction form
820,457.92/1,132,346.05 = 457,905.13/x - Step 3: Cross multiply
820,457.92x = 1,132,346.05 × 457,905.13 - Step 4: Simplify right side
820,457.92x = 518,507,065,230.24 - Step 5: Solve for x
x = 518,507,065,230.24/820,457.92 - Step 6: Final answer
x = 631,972.77
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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.