Finding the Fourth Proportional to 439,403.99, 606,353.95 and 248,405.99
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Solution
The fourth proportional to 439,403.99, 606,353.95 and 248,405.99 is: 342,786.95
Step by Step Solution
- Step 1: Write the proportion equation
439,403.99 : 606,353.95 = 248,405.99 : x - Step 2: Convert to fraction form
439,403.99/606,353.95 = 248,405.99/x - Step 3: Cross multiply
439,403.99x = 606,353.95 × 248,405.99 - Step 4: Simplify right side
439,403.99x = 150,621,953,240.16 - Step 5: Solve for x
x = 150,621,953,240.16/439,403.99 - Step 6: Final answer
x = 342,786.95
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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.