Finding the Fourth Proportional to 438,735.36, 657,104.40 and 343,370.88
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Solution
The fourth proportional to 438,735.36, 657,104.40 and 343,370.88 is: 514,274.75
Step by Step Solution
- Step 1: Write the proportion equation
438,735.36 : 657,104.40 = 343,370.88 : x - Step 2: Convert to fraction form
438,735.36/657,104.40 = 343,370.88/x - Step 3: Cross multiply
438,735.36x = 657,104.40 × 343,370.88 - Step 4: Simplify right side
438,735.36x = 225,630,516,079.87 - Step 5: Solve for x
x = 225,630,516,079.87/438,735.36 - Step 6: Final answer
x = 514,274.75
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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.