Finding the Fourth Proportional to 724,457.60, 1,085,908.80 and 275,004.80
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Solution
The fourth proportional to 724,457.60, 1,085,908.80 and 275,004.80 is: 412,212.02
Step by Step Solution
- Step 1: Write the proportion equation
724,457.60 : 1,085,908.80 = 275,004.80 : x - Step 2: Convert to fraction form
724,457.60/1,085,908.80 = 275,004.80/x - Step 3: Cross multiply
724,457.60x = 1,085,908.80 × 275,004.80 - Step 4: Simplify right side
724,457.60x = 298,630,132,362.24 - Step 5: Solve for x
x = 298,630,132,362.24/724,457.60 - Step 6: Final answer
x = 412,212.02
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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.