Finding the Fourth Proportional to 665,225.98, 917,739.84 and 491,213.14
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Solution
The fourth proportional to 665,225.98, 917,739.84 and 491,213.14 is: 677,673.28
Step by Step Solution
- Step 1: Write the proportion equation
665,225.98 : 917,739.84 = 491,213.14 : x - Step 2: Convert to fraction form
665,225.98/917,739.84 = 491,213.14/x - Step 3: Cross multiply
665,225.98x = 917,739.84 × 491,213.14 - Step 4: Simplify right side
665,225.98x = 450,805,868,509.50 - Step 5: Solve for x
x = 450,805,868,509.50/665,225.98 - Step 6: Final answer
x = 677,673.28
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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.