Finding the Fourth Proportional to 642,556.20, 963,542.70 and 243,064.20
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Solution
The fourth proportional to 642,556.20, 963,542.70 and 243,064.20 is: 364,485.99
Step by Step Solution
- Step 1: Write the proportion equation
642,556.20 : 963,542.70 = 243,064.20 : x - Step 2: Convert to fraction form
642,556.20/963,542.70 = 243,064.20/x - Step 3: Cross multiply
642,556.20x = 963,542.70 × 243,064.20 - Step 4: Simplify right side
642,556.20x = 234,202,735,541.34 - Step 5: Solve for x
x = 234,202,735,541.34/642,556.20 - Step 6: Final answer
x = 364,485.99
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1.5x scale
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.