Finding the Fourth Proportional to 412,970.08, 619,629.36 and 225,762.88
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Solution
The fourth proportional to 412,970.08, 619,629.36 and 225,762.88 is: 338,739.57
Step by Step Solution
- Step 1: Write the proportion equation
412,970.08 : 619,629.36 = 225,762.88 : x - Step 2: Convert to fraction form
412,970.08/619,629.36 = 225,762.88/x - Step 3: Cross multiply
412,970.08x = 619,629.36 × 225,762.88 - Step 4: Simplify right side
412,970.08x = 139,889,308,846.16 - Step 5: Solve for x
x = 139,889,308,846.16/412,970.08 - Step 6: Final answer
x = 338,739.57
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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.