Finding the Fourth Proportional to 639,525.99, 882,548.70 and 353,048.43
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Solution
The fourth proportional to 639,525.99, 882,548.70 and 353,048.43 is: 487,208.40
Step by Step Solution
- Step 1: Write the proportion equation
639,525.99 : 882,548.70 = 353,048.43 : x - Step 2: Convert to fraction form
639,525.99/882,548.70 = 353,048.43/x - Step 3: Cross multiply
639,525.99x = 882,548.70 × 353,048.43 - Step 4: Simplify right side
639,525.99x = 311,582,432,933.54 - Step 5: Solve for x
x = 311,582,432,933.54/639,525.99 - Step 6: Final answer
x = 487,208.40
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1.5x scale
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.