Finding the Fourth Proportional to 619,905.96, 929,858.94 and 199,477.08
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Solution
The fourth proportional to 619,905.96, 929,858.94 and 199,477.08 is: 299,215.62
Step by Step Solution
- Step 1: Write the proportion equation
619,905.96 : 929,858.94 = 199,477.08 : x - Step 2: Convert to fraction form
619,905.96/929,858.94 = 199,477.08/x - Step 3: Cross multiply
619,905.96x = 929,858.94 × 199,477.08 - Step 4: Simplify right side
619,905.96x = 185,485,546,163.10 - Step 5: Solve for x
x = 185,485,546,163.10/619,905.96 - Step 6: Final answer
x = 299,215.62
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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.