Finding the Fourth Proportional to 464,221.40, 640,739.48 and 283,033.23
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Solution
The fourth proportional to 464,221.40, 640,739.48 and 283,033.23 is: 390,655.32
Step by Step Solution
- Step 1: Write the proportion equation
464,221.40 : 640,739.48 = 283,033.23 : x - Step 2: Convert to fraction form
464,221.40/640,739.48 = 283,033.23/x - Step 3: Cross multiply
464,221.40x = 640,739.48 × 283,033.23 - Step 4: Simplify right side
464,221.40x = 181,350,560,794.98 - Step 5: Solve for x
x = 181,350,560,794.98/464,221.40 - Step 6: Final answer
x = 390,655.32
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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.