Finding the Fourth Proportional to 809,430.20, 1,214,145.30 and 248,391.80
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Solution
The fourth proportional to 809,430.20, 1,214,145.30 and 248,391.80 is: 372,587.70
Step by Step Solution
- Step 1: Write the proportion equation
809,430.20 : 1,214,145.30 = 248,391.80 : x - Step 2: Convert to fraction form
809,430.20/1,214,145.30 = 248,391.80/x - Step 3: Cross multiply
809,430.20x = 1,214,145.30 × 248,391.80 - Step 4: Simplify right side
809,430.20x = 301,583,736,528.54 - Step 5: Solve for x
x = 301,583,736,528.54/809,430.20 - Step 6: Final answer
x = 372,587.70
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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.