Finding the Fourth Proportional to 639,253.49, 882,190.98 and 348,880.91
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Solution
The fourth proportional to 639,253.49, 882,190.98 and 348,880.91 is: 481,467.20
Step by Step Solution
- Step 1: Write the proportion equation
639,253.49 : 882,190.98 = 348,880.91 : x - Step 2: Convert to fraction form
639,253.49/882,190.98 = 348,880.91/x - Step 3: Cross multiply
639,253.49x = 882,190.98 × 348,880.91 - Step 4: Simplify right side
639,253.49x = 307,779,587,485.24 - Step 5: Solve for x
x = 307,779,587,485.24/639,253.49 - Step 6: Final answer
x = 481,467.20
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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.